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Finding the Fourth Proportional to 58,693.17, 88,046.60 and 21,270.87

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Solution

The fourth proportional to 58,693.17, 88,046.60 and 21,270.87 is: 31,908.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,693.17 : 88,046.60 = 21,270.87 : x
  2. Step 2: Convert to fraction form
    58,693.17/88,046.60 = 21,270.87/x
  3. Step 3: Cross multiply
    58,693.17x = 88,046.60 × 21,270.87
  4. Step 4: Simplify right side
    58,693.17x = 1,872,827,782.54
  5. Step 5: Solve for x
    x = 1,872,827,782.54/58,693.17
  6. Step 6: Final answer
    x = 31,908.79

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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.