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Finding the Fourth Proportional to 58,029, 86,908.50 and 56,432.70

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Solution

The fourth proportional to 58,029, 86,908.50 and 56,432.70 is: 84,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,029 : 86,908.50 = 56,432.70 : x
  2. Step 2: Convert to fraction form
    58,029/86,908.50 = 56,432.70/x
  3. Step 3: Cross multiply
    58,029x = 86,908.50 × 56,432.70
  4. Step 4: Simplify right side
    58,029x = 4,904,481,307.95
  5. Step 5: Solve for x
    x = 4,904,481,307.95/58,029
  6. Step 6: Final answer
    x = 84,517.76

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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.