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Finding the Fourth Proportional to 32,378.60, 44,672.20 and 18,228.71

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Solution

The fourth proportional to 32,378.60, 44,672.20 and 18,228.71 is: 25,149.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,378.60 : 44,672.20 = 18,228.71 : x
  2. Step 2: Convert to fraction form
    32,378.60/44,672.20 = 18,228.71/x
  3. Step 3: Cross multiply
    32,378.60x = 44,672.20 × 18,228.71
  4. Step 4: Simplify right side
    32,378.60x = 814,316,644.97
  5. Step 5: Solve for x
    x = 814,316,644.97/32,378.60
  6. Step 6: Final answer
    x = 25,149.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.