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Finding the Fourth Proportional to 48,708.48, 73,073.92 and 15,428.48

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Solution

The fourth proportional to 48,708.48, 73,073.92 and 15,428.48 is: 23,146.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,708.48 : 73,073.92 = 15,428.48 : x
  2. Step 2: Convert to fraction form
    48,708.48/73,073.92 = 15,428.48/x
  3. Step 3: Cross multiply
    48,708.48x = 73,073.92 × 15,428.48
  4. Step 4: Simplify right side
    48,708.48x = 1,127,419,513.24
  5. Step 5: Solve for x
    x = 1,127,419,513.24/48,708.48
  6. Step 6: Final answer
    x = 23,146.27

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1.5x scale

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.