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Finding the Fourth Proportional to 72,426.92, 108,654.60 and 35,012.84

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Solution

The fourth proportional to 72,426.92, 108,654.60 and 35,012.84 is: 52,526.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,426.92 : 108,654.60 = 35,012.84 : x
  2. Step 2: Convert to fraction form
    72,426.92/108,654.60 = 35,012.84/x
  3. Step 3: Cross multiply
    72,426.92x = 108,654.60 × 35,012.84
  4. Step 4: Simplify right side
    72,426.92x = 3,804,306,125.06
  5. Step 5: Solve for x
    x = 3,804,306,125.06/72,426.92
  6. Step 6: Final answer
    x = 52,526.13

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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.