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Finding the Fourth Proportional to 52,707.96, 79,091.10 and 21,565.08

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Solution

The fourth proportional to 52,707.96, 79,091.10 and 21,565.08 is: 32,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,707.96 : 79,091.10 = 21,565.08 : x
  2. Step 2: Convert to fraction form
    52,707.96/79,091.10 = 21,565.08/x
  3. Step 3: Cross multiply
    52,707.96x = 79,091.10 × 21,565.08
  4. Step 4: Simplify right side
    52,707.96x = 1,705,605,898.79
  5. Step 5: Solve for x
    x = 1,705,605,898.79/52,707.96
  6. Step 6: Final answer
    x = 32,359.55

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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.