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Finding the Fourth Proportional to 52,448.92, 72,379.78 and 28,575.79

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Solution

The fourth proportional to 52,448.92, 72,379.78 and 28,575.79 is: 39,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,448.92 : 72,379.78 = 28,575.79 : x
  2. Step 2: Convert to fraction form
    52,448.92/72,379.78 = 28,575.79/x
  3. Step 3: Cross multiply
    52,448.92x = 72,379.78 × 28,575.79
  4. Step 4: Simplify right side
    52,448.92x = 2,068,309,141.14
  5. Step 5: Solve for x
    x = 2,068,309,141.14/52,448.92
  6. Step 6: Final answer
    x = 39,434.73

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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.