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Finding the Fourth Proportional to 26,643.92, 39,938.13 and 10,842.17

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Solution

The fourth proportional to 26,643.92, 39,938.13 and 10,842.17 is: 16,251.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,643.92 : 39,938.13 = 10,842.17 : x
  2. Step 2: Convert to fraction form
    26,643.92/39,938.13 = 10,842.17/x
  3. Step 3: Cross multiply
    26,643.92x = 39,938.13 × 10,842.17
  4. Step 4: Simplify right side
    26,643.92x = 433,015,795.25
  5. Step 5: Solve for x
    x = 433,015,795.25/26,643.92
  6. Step 6: Final answer
    x = 16,251.96

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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.