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Finding the Fourth Proportional to 10,651.65, 15,977.47 and 2,860.46

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Solution

The fourth proportional to 10,651.65, 15,977.47 and 2,860.46 is: 4,290.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,651.65 : 15,977.47 = 2,860.46 : x
  2. Step 2: Convert to fraction form
    10,651.65/15,977.47 = 2,860.46/x
  3. Step 3: Cross multiply
    10,651.65x = 15,977.47 × 2,860.46
  4. Step 4: Simplify right side
    10,651.65x = 45,702,913.84
  5. Step 5: Solve for x
    x = 45,702,913.84/10,651.65
  6. Step 6: Final answer
    x = 4,290.69

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.