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Finding the Fourth Proportional to 48,711, 67,221.18 and 26,355

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Solution

The fourth proportional to 48,711, 67,221.18 and 26,355 is: 36,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,711 : 67,221.18 = 26,355 : x
  2. Step 2: Convert to fraction form
    48,711/67,221.18 = 26,355/x
  3. Step 3: Cross multiply
    48,711x = 67,221.18 × 26,355
  4. Step 4: Simplify right side
    48,711x = 1,771,614,198.90
  5. Step 5: Solve for x
    x = 1,771,614,198.90/48,711
  6. Step 6: Final answer
    x = 36,369.90

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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.