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Finding the Fourth Proportional to 58,916.80, 88,375.20 and 19,475.20

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Solution

The fourth proportional to 58,916.80, 88,375.20 and 19,475.20 is: 29,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,916.80 : 88,375.20 = 19,475.20 : x
  2. Step 2: Convert to fraction form
    58,916.80/88,375.20 = 19,475.20/x
  3. Step 3: Cross multiply
    58,916.80x = 88,375.20 × 19,475.20
  4. Step 4: Simplify right side
    58,916.80x = 1,721,124,695.04
  5. Step 5: Solve for x
    x = 1,721,124,695.04/58,916.80
  6. Step 6: Final answer
    x = 29,212.80

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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.