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Finding the Fourth Proportional to 7,641.65, 10,532.07 and 6,576.77

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Solution

The fourth proportional to 7,641.65, 10,532.07 and 6,576.77 is: 9,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641.65 : 10,532.07 = 6,576.77 : x
  2. Step 2: Convert to fraction form
    7,641.65/10,532.07 = 6,576.77/x
  3. Step 3: Cross multiply
    7,641.65x = 10,532.07 × 6,576.77
  4. Step 4: Simplify right side
    7,641.65x = 69,266,949.35
  5. Step 5: Solve for x
    x = 69,266,949.35/7,641.65
  6. Step 6: Final answer
    x = 9,064.40

Related Problems

Find fourth proportional to 3,820.82, 5,266.04 and 3,288.38
Half scale
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Double scale
Find fourth proportional to 7,642.65, 10,533.45 and 6,577.77
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.