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Finding the Fourth Proportional to 58,436.80, 87,622.80 and 25,151.20

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Solution

The fourth proportional to 58,436.80, 87,622.80 and 25,151.20 is: 37,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,436.80 : 87,622.80 = 25,151.20 : x
  2. Step 2: Convert to fraction form
    58,436.80/87,622.80 = 25,151.20/x
  3. Step 3: Cross multiply
    58,436.80x = 87,622.80 × 25,151.20
  4. Step 4: Simplify right side
    58,436.80x = 2,203,818,567.36
  5. Step 5: Solve for x
    x = 2,203,818,567.36/58,436.80
  6. Step 6: Final answer
    x = 37,712.86

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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.