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Finding the Fourth Proportional to 45,648.60, 68,472.90 and 37,872.60

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Solution

The fourth proportional to 45,648.60, 68,472.90 and 37,872.60 is: 56,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,648.60 : 68,472.90 = 37,872.60 : x
  2. Step 2: Convert to fraction form
    45,648.60/68,472.90 = 37,872.60/x
  3. Step 3: Cross multiply
    45,648.60x = 68,472.90 × 37,872.60
  4. Step 4: Simplify right side
    45,648.60x = 2,593,246,752.54
  5. Step 5: Solve for x
    x = 2,593,246,752.54/45,648.60
  6. Step 6: Final answer
    x = 56,808.90

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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.