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Finding the Fourth Proportional to 39,294.82, 58,942.28 and 9,712.20

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Solution

The fourth proportional to 39,294.82, 58,942.28 and 9,712.20 is: 14,568.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,294.82 : 58,942.28 = 9,712.20 : x
  2. Step 2: Convert to fraction form
    39,294.82/58,942.28 = 9,712.20/x
  3. Step 3: Cross multiply
    39,294.82x = 58,942.28 × 9,712.20
  4. Step 4: Simplify right side
    39,294.82x = 572,459,211.82
  5. Step 5: Solve for x
    x = 572,459,211.82/39,294.82
  6. Step 6: Final answer
    x = 14,568.31

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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.