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Finding the Fourth Proportional to 45,503.52, 62,819.64 and 31,432.08

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Solution

The fourth proportional to 45,503.52, 62,819.64 and 31,432.08 is: 43,393.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,503.52 : 62,819.64 = 31,432.08 : x
  2. Step 2: Convert to fraction form
    45,503.52/62,819.64 = 31,432.08/x
  3. Step 3: Cross multiply
    45,503.52x = 62,819.64 × 31,432.08
  4. Step 4: Simplify right side
    45,503.52x = 1,974,551,950.05
  5. Step 5: Solve for x
    x = 1,974,551,950.05/45,503.52
  6. Step 6: Final answer
    x = 43,393.39

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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.