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Finding the Fourth Proportional to 45,378.60, 67,922.10 and 32,256.60

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Solution

The fourth proportional to 45,378.60, 67,922.10 and 32,256.60 is: 48,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,378.60 : 67,922.10 = 32,256.60 : x
  2. Step 2: Convert to fraction form
    45,378.60/67,922.10 = 32,256.60/x
  3. Step 3: Cross multiply
    45,378.60x = 67,922.10 × 32,256.60
  4. Step 4: Simplify right side
    45,378.60x = 2,190,936,010.86
  5. Step 5: Solve for x
    x = 2,190,936,010.86/45,378.60
  6. Step 6: Final answer
    x = 48,281.26

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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.