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Finding the Fourth Proportional to 42,335.30, 63,502.32 and 10,314.74

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Solution

The fourth proportional to 42,335.30, 63,502.32 and 10,314.74 is: 15,471.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,335.30 : 63,502.32 = 10,314.74 : x
  2. Step 2: Convert to fraction form
    42,335.30/63,502.32 = 10,314.74/x
  3. Step 3: Cross multiply
    42,335.30x = 63,502.32 × 10,314.74
  4. Step 4: Simplify right side
    42,335.30x = 655,009,920.20
  5. Step 5: Solve for x
    x = 655,009,920.20/42,335.30
  6. Step 6: Final answer
    x = 15,471.96

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