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Finding the Fourth Proportional to 54,041.96, 81,061.98 and 17,105

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Solution

The fourth proportional to 54,041.96, 81,061.98 and 17,105 is: 25,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,041.96 : 81,061.98 = 17,105 : x
  2. Step 2: Convert to fraction form
    54,041.96/81,061.98 = 17,105/x
  3. Step 3: Cross multiply
    54,041.96x = 81,061.98 × 17,105
  4. Step 4: Simplify right side
    54,041.96x = 1,386,565,167.90
  5. Step 5: Solve for x
    x = 1,386,565,167.90/54,041.96
  6. Step 6: Final answer
    x = 25,657.20

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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.