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Finding the Fourth Proportional to 58,732.59, 81,090 and 34,866.93

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Solution

The fourth proportional to 58,732.59, 81,090 and 34,866.93 is: 48,139.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,732.59 : 81,090 = 34,866.93 : x
  2. Step 2: Convert to fraction form
    58,732.59/81,090 = 34,866.93/x
  3. Step 3: Cross multiply
    58,732.59x = 81,090 × 34,866.93
  4. Step 4: Simplify right side
    58,732.59x = 2,827,359,353.70
  5. Step 5: Solve for x
    x = 2,827,359,353.70/58,732.59
  6. Step 6: Final answer
    x = 48,139.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.