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Finding the Fourth Proportional to 17,865.87, 24,655.50 and 9,907.62

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Solution

The fourth proportional to 17,865.87, 24,655.50 and 9,907.62 is: 13,672.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,865.87 : 24,655.50 = 9,907.62 : x
  2. Step 2: Convert to fraction form
    17,865.87/24,655.50 = 9,907.62/x
  3. Step 3: Cross multiply
    17,865.87x = 24,655.50 × 9,907.62
  4. Step 4: Simplify right side
    17,865.87x = 244,277,324.91
  5. Step 5: Solve for x
    x = 244,277,324.91/17,865.87
  6. Step 6: Final answer
    x = 13,672.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.