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Finding the Fourth Proportional to 43,655.88, 65,488.65 and 15,582.48

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Solution

The fourth proportional to 43,655.88, 65,488.65 and 15,582.48 is: 23,375.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,655.88 : 65,488.65 = 15,582.48 : x
  2. Step 2: Convert to fraction form
    43,655.88/65,488.65 = 15,582.48/x
  3. Step 3: Cross multiply
    43,655.88x = 65,488.65 × 15,582.48
  4. Step 4: Simplify right side
    43,655.88x = 1,020,475,578.85
  5. Step 5: Solve for x
    x = 1,020,475,578.85/43,655.88
  6. Step 6: Final answer
    x = 23,375.44

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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.