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Finding the Fourth Proportional to 55,472.74, 76,552.29 and 31,599.40

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Solution

The fourth proportional to 55,472.74, 76,552.29 and 31,599.40 is: 43,607.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,472.74 : 76,552.29 = 31,599.40 : x
  2. Step 2: Convert to fraction form
    55,472.74/76,552.29 = 31,599.40/x
  3. Step 3: Cross multiply
    55,472.74x = 76,552.29 × 31,599.40
  4. Step 4: Simplify right side
    55,472.74x = 2,419,006,432.63
  5. Step 5: Solve for x
    x = 2,419,006,432.63/55,472.74
  6. Step 6: Final answer
    x = 43,607.12

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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.