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Finding the Fourth Proportional to 58,092.77, 87,139.19 and 28,503.74

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Solution

The fourth proportional to 58,092.77, 87,139.19 and 28,503.74 is: 42,755.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,092.77 : 87,139.19 = 28,503.74 : x
  2. Step 2: Convert to fraction form
    58,092.77/87,139.19 = 28,503.74/x
  3. Step 3: Cross multiply
    58,092.77x = 87,139.19 × 28,503.74
  4. Step 4: Simplify right side
    58,092.77x = 2,483,792,815.57
  5. Step 5: Solve for x
    x = 2,483,792,815.57/58,092.77
  6. Step 6: Final answer
    x = 42,755.63

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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.