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Finding the Fourth Proportional to 48,456.92, 72,713.58 and 20,374.94

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Solution

The fourth proportional to 48,456.92, 72,713.58 and 20,374.94 is: 30,574.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,456.92 : 72,713.58 = 20,374.94 : x
  2. Step 2: Convert to fraction form
    48,456.92/72,713.58 = 20,374.94/x
  3. Step 3: Cross multiply
    48,456.92x = 72,713.58 × 20,374.94
  4. Step 4: Simplify right side
    48,456.92x = 1,481,534,829.69
  5. Step 5: Solve for x
    x = 1,481,534,829.69/48,456.92
  6. Step 6: Final answer
    x = 30,574.27

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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.