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Finding the Fourth Proportional to 43,434.60, 65,122.70 and 17,125.80

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Solution

The fourth proportional to 43,434.60, 65,122.70 and 17,125.80 is: 25,677.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,434.60 : 65,122.70 = 17,125.80 : x
  2. Step 2: Convert to fraction form
    43,434.60/65,122.70 = 17,125.80/x
  3. Step 3: Cross multiply
    43,434.60x = 65,122.70 × 17,125.80
  4. Step 4: Simplify right side
    43,434.60x = 1,115,278,335.66
  5. Step 5: Solve for x
    x = 1,115,278,335.66/43,434.60
  6. Step 6: Final answer
    x = 25,677.19

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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.