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Finding the Fourth Proportional to 62,805.30, 94,216.14 and 20,689.71

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Solution

The fourth proportional to 62,805.30, 94,216.14 and 20,689.71 is: 31,037.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,805.30 : 94,216.14 = 20,689.71 : x
  2. Step 2: Convert to fraction form
    62,805.30/94,216.14 = 20,689.71/x
  3. Step 3: Cross multiply
    62,805.30x = 94,216.14 × 20,689.71
  4. Step 4: Simplify right side
    62,805.30x = 1,949,304,613.92
  5. Step 5: Solve for x
    x = 1,949,304,613.92/62,805.30
  6. Step 6: Final answer
    x = 31,037.26

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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.