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Finding the Fourth Proportional to 48,254.40, 72,439.20 and 27,211.20

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Solution

The fourth proportional to 48,254.40, 72,439.20 and 27,211.20 is: 40,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,254.40 : 72,439.20 = 27,211.20 : x
  2. Step 2: Convert to fraction form
    48,254.40/72,439.20 = 27,211.20/x
  3. Step 3: Cross multiply
    48,254.40x = 72,439.20 × 27,211.20
  4. Step 4: Simplify right side
    48,254.40x = 1,971,157,559.04
  5. Step 5: Solve for x
    x = 1,971,157,559.04/48,254.40
  6. Step 6: Final answer
    x = 40,849.28

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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.