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Finding the Fourth Proportional to 38,580.80, 57,870.78 and 29,277.95

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Solution

The fourth proportional to 38,580.80, 57,870.78 and 29,277.95 is: 43,916.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,580.80 : 57,870.78 = 29,277.95 : x
  2. Step 2: Convert to fraction form
    38,580.80/57,870.78 = 29,277.95/x
  3. Step 3: Cross multiply
    38,580.80x = 57,870.78 × 29,277.95
  4. Step 4: Simplify right side
    38,580.80x = 1,694,337,513.95
  5. Step 5: Solve for x
    x = 1,694,337,513.95/38,580.80
  6. Step 6: Final answer
    x = 43,916.60

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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.