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Finding the Fourth Proportional to 53,808.48, 74,251.50 and 29,931.30

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Solution

The fourth proportional to 53,808.48, 74,251.50 and 29,931.30 is: 41,302.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,808.48 : 74,251.50 = 29,931.30 : x
  2. Step 2: Convert to fraction form
    53,808.48/74,251.50 = 29,931.30/x
  3. Step 3: Cross multiply
    53,808.48x = 74,251.50 × 29,931.30
  4. Step 4: Simplify right side
    53,808.48x = 2,222,443,921.95
  5. Step 5: Solve for x
    x = 2,222,443,921.95/53,808.48
  6. Step 6: Final answer
    x = 41,302.86

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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.