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Finding the Fourth Proportional to 9,561.87, 13,191.69 and 7,049.95

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Solution

The fourth proportional to 9,561.87, 13,191.69 and 7,049.95 is: 9,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,561.87 : 13,191.69 = 7,049.95 : x
  2. Step 2: Convert to fraction form
    9,561.87/13,191.69 = 7,049.95/x
  3. Step 3: Cross multiply
    9,561.87x = 13,191.69 × 7,049.95
  4. Step 4: Simplify right side
    9,561.87x = 93,000,754.92
  5. Step 5: Solve for x
    x = 93,000,754.92/9,561.87
  6. Step 6: Final answer
    x = 9,726.21

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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.