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Finding the Fourth Proportional to 61,167.74, 84,377.28 and 38,498.30

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Solution

The fourth proportional to 61,167.74, 84,377.28 and 38,498.30 is: 53,106.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,167.74 : 84,377.28 = 38,498.30 : x
  2. Step 2: Convert to fraction form
    61,167.74/84,377.28 = 38,498.30/x
  3. Step 3: Cross multiply
    61,167.74x = 84,377.28 × 38,498.30
  4. Step 4: Simplify right side
    61,167.74x = 3,248,381,838.62
  5. Step 5: Solve for x
    x = 3,248,381,838.62/61,167.74
  6. Step 6: Final answer
    x = 53,106.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.