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Finding the Fourth Proportional to 48,654.40, 67,143.72 and 29,528.68

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Solution

The fourth proportional to 48,654.40, 67,143.72 and 29,528.68 is: 40,749.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,654.40 : 67,143.72 = 29,528.68 : x
  2. Step 2: Convert to fraction form
    48,654.40/67,143.72 = 29,528.68/x
  3. Step 3: Cross multiply
    48,654.40x = 67,143.72 × 29,528.68
  4. Step 4: Simplify right side
    48,654.40x = 1,982,665,421.89
  5. Step 5: Solve for x
    x = 1,982,665,421.89/48,654.40
  6. Step 6: Final answer
    x = 40,749.97

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1.5x scale

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.