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Finding the Fourth Proportional to 17,649.65, 24,354.93 and 9,691.70

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Solution

The fourth proportional to 17,649.65, 24,354.93 and 9,691.70 is: 13,373.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,649.65 : 24,354.93 = 9,691.70 : x
  2. Step 2: Convert to fraction form
    17,649.65/24,354.93 = 9,691.70/x
  3. Step 3: Cross multiply
    17,649.65x = 24,354.93 × 9,691.70
  4. Step 4: Simplify right side
    17,649.65x = 236,040,675.08
  5. Step 5: Solve for x
    x = 236,040,675.08/17,649.65
  6. Step 6: Final answer
    x = 13,373.67

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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.