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Finding the Fourth Proportional to 43,508.60, 65,133.30 and 25,969.40

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Solution

The fourth proportional to 43,508.60, 65,133.30 and 25,969.40 is: 38,876.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,508.60 : 65,133.30 = 25,969.40 : x
  2. Step 2: Convert to fraction form
    43,508.60/65,133.30 = 25,969.40/x
  3. Step 3: Cross multiply
    43,508.60x = 65,133.30 × 25,969.40
  4. Step 4: Simplify right side
    43,508.60x = 1,691,472,721.02
  5. Step 5: Solve for x
    x = 1,691,472,721.02/43,508.60
  6. Step 6: Final answer
    x = 38,876.74

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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.