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Finding the Fourth Proportional to 61,225.74, 91,839.12 and 16,854.96

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Solution

The fourth proportional to 61,225.74, 91,839.12 and 16,854.96 is: 25,282.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,225.74 : 91,839.12 = 16,854.96 : x
  2. Step 2: Convert to fraction form
    61,225.74/91,839.12 = 16,854.96/x
  3. Step 3: Cross multiply
    61,225.74x = 91,839.12 × 16,854.96
  4. Step 4: Simplify right side
    61,225.74x = 1,547,944,694.04
  5. Step 5: Solve for x
    x = 1,547,944,694.04/61,225.74
  6. Step 6: Final answer
    x = 25,282.58

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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.