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Finding the Fourth Proportional to 58,686.60, 88,042.16 and 19,240.60

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Solution

The fourth proportional to 58,686.60, 88,042.16 and 19,240.60 is: 28,864.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,686.60 : 88,042.16 = 19,240.60 : x
  2. Step 2: Convert to fraction form
    58,686.60/88,042.16 = 19,240.60/x
  3. Step 3: Cross multiply
    58,686.60x = 88,042.16 × 19,240.60
  4. Step 4: Simplify right side
    58,686.60x = 1,693,983,983.70
  5. Step 5: Solve for x
    x = 1,693,983,983.70/58,686.60
  6. Step 6: Final answer
    x = 28,864.92

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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.