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Finding the Fourth Proportional to 47,248.40, 70,872.60 and 26,469.20

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Solution

The fourth proportional to 47,248.40, 70,872.60 and 26,469.20 is: 39,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,248.40 : 70,872.60 = 26,469.20 : x
  2. Step 2: Convert to fraction form
    47,248.40/70,872.60 = 26,469.20/x
  3. Step 3: Cross multiply
    47,248.40x = 70,872.60 × 26,469.20
  4. Step 4: Simplify right side
    47,248.40x = 1,875,941,023.92
  5. Step 5: Solve for x
    x = 1,875,941,023.92/47,248.40
  6. Step 6: Final answer
    x = 39,703.80

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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.