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Finding the Fourth Proportional to 47,141.80, 70,712.70 and 36,644.20

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Solution

The fourth proportional to 47,141.80, 70,712.70 and 36,644.20 is: 54,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,141.80 : 70,712.70 = 36,644.20 : x
  2. Step 2: Convert to fraction form
    47,141.80/70,712.70 = 36,644.20/x
  3. Step 3: Cross multiply
    47,141.80x = 70,712.70 × 36,644.20
  4. Step 4: Simplify right side
    47,141.80x = 2,591,210,321.34
  5. Step 5: Solve for x
    x = 2,591,210,321.34/47,141.80
  6. Step 6: Final answer
    x = 54,966.30

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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.