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Finding the Fourth Proportional to 61,248.74, 91,864.73 and 16,869.11

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Solution

The fourth proportional to 61,248.74, 91,864.73 and 16,869.11 is: 25,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,248.74 : 91,864.73 = 16,869.11 : x
  2. Step 2: Convert to fraction form
    61,248.74/91,864.73 = 16,869.11/x
  3. Step 3: Cross multiply
    61,248.74x = 91,864.73 × 16,869.11
  4. Step 4: Simplify right side
    61,248.74x = 1,549,675,818.34
  5. Step 5: Solve for x
    x = 1,549,675,818.34/61,248.74
  6. Step 6: Final answer
    x = 25,301.35

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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.