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Finding the Fourth Proportional to 47,989.80, 71,984.70 and 32,243.40

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Solution

The fourth proportional to 47,989.80, 71,984.70 and 32,243.40 is: 48,365.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,989.80 : 71,984.70 = 32,243.40 : x
  2. Step 2: Convert to fraction form
    47,989.80/71,984.70 = 32,243.40/x
  3. Step 3: Cross multiply
    47,989.80x = 71,984.70 × 32,243.40
  4. Step 4: Simplify right side
    47,989.80x = 2,321,031,475.98
  5. Step 5: Solve for x
    x = 2,321,031,475.98/47,989.80
  6. Step 6: Final answer
    x = 48,365.10

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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.