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Finding the Fourth Proportional to 7,721.65, 10,649.00 and 6,020.58

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Solution

The fourth proportional to 7,721.65, 10,649.00 and 6,020.58 is: 8,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.65 : 10,649.00 = 6,020.58 : x
  2. Step 2: Convert to fraction form
    7,721.65/10,649.00 = 6,020.58/x
  3. Step 3: Cross multiply
    7,721.65x = 10,649.00 × 6,020.58
  4. Step 4: Simplify right side
    7,721.65x = 64,113,151.50
  5. Step 5: Solve for x
    x = 64,113,151.50/7,721.65
  6. Step 6: Final answer
    x = 8,303.03

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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.