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Finding the Fourth Proportional to 15,033.05, 20,738.98 and 9,061.19

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Solution

The fourth proportional to 15,033.05, 20,738.98 and 9,061.19 is: 12,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,033.05 : 20,738.98 = 9,061.19 : x
  2. Step 2: Convert to fraction form
    15,033.05/20,738.98 = 9,061.19/x
  3. Step 3: Cross multiply
    15,033.05x = 20,738.98 × 9,061.19
  4. Step 4: Simplify right side
    15,033.05x = 187,919,838.19
  5. Step 5: Solve for x
    x = 187,919,838.19/15,033.05
  6. Step 6: Final answer
    x = 12,500.45

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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.