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Finding the Fourth Proportional to 43,866.60, 65,799.90 and 25,139.40

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Solution

The fourth proportional to 43,866.60, 65,799.90 and 25,139.40 is: 37,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,866.60 : 65,799.90 = 25,139.40 : x
  2. Step 2: Convert to fraction form
    43,866.60/65,799.90 = 25,139.40/x
  3. Step 3: Cross multiply
    43,866.60x = 65,799.90 × 25,139.40
  4. Step 4: Simplify right side
    43,866.60x = 1,654,170,006.06
  5. Step 5: Solve for x
    x = 1,654,170,006.06/43,866.60
  6. Step 6: Final answer
    x = 37,709.10

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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.