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Finding the Fourth Proportional to 48,672.40, 73,008.60 and 13,614.80

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Solution

The fourth proportional to 48,672.40, 73,008.60 and 13,614.80 is: 20,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,672.40 : 73,008.60 = 13,614.80 : x
  2. Step 2: Convert to fraction form
    48,672.40/73,008.60 = 13,614.80/x
  3. Step 3: Cross multiply
    48,672.40x = 73,008.60 × 13,614.80
  4. Step 4: Simplify right side
    48,672.40x = 993,997,487.28
  5. Step 5: Solve for x
    x = 993,997,487.28/48,672.40
  6. Step 6: Final answer
    x = 20,422.20

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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.