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Finding the Fourth Proportional to 61,472.66, 92,211.29 and 21,483.81

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Solution

The fourth proportional to 61,472.66, 92,211.29 and 21,483.81 is: 32,226.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,472.66 : 92,211.29 = 21,483.81 : x
  2. Step 2: Convert to fraction form
    61,472.66/92,211.29 = 21,483.81/x
  3. Step 3: Cross multiply
    61,472.66x = 92,211.29 × 21,483.81
  4. Step 4: Simplify right side
    61,472.66x = 1,981,049,726.80
  5. Step 5: Solve for x
    x = 1,981,049,726.80/61,472.66
  6. Step 6: Final answer
    x = 32,226.52

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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.