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Finding the Fourth Proportional to 15,041.72, 20,759.98 and 9,074.26

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Solution

The fourth proportional to 15,041.72, 20,759.98 and 9,074.26 is: 12,523.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,041.72 : 20,759.98 = 9,074.26 : x
  2. Step 2: Convert to fraction form
    15,041.72/20,759.98 = 9,074.26/x
  3. Step 3: Cross multiply
    15,041.72x = 20,759.98 × 9,074.26
  4. Step 4: Simplify right side
    15,041.72x = 188,381,456.11
  5. Step 5: Solve for x
    x = 188,381,456.11/15,041.72
  6. Step 6: Final answer
    x = 12,523.93

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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.