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Finding the Fourth Proportional to 48,344.20, 72,494.70 and 18,752.20

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Solution

The fourth proportional to 48,344.20, 72,494.70 and 18,752.20 is: 28,119.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,344.20 : 72,494.70 = 18,752.20 : x
  2. Step 2: Convert to fraction form
    48,344.20/72,494.70 = 18,752.20/x
  3. Step 3: Cross multiply
    48,344.20x = 72,494.70 × 18,752.20
  4. Step 4: Simplify right side
    48,344.20x = 1,359,435,113.34
  5. Step 5: Solve for x
    x = 1,359,435,113.34/48,344.20
  6. Step 6: Final answer
    x = 28,119.92

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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.