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Finding the Fourth Proportional to 15,073.41, 20,790.90 and 10,349.49

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Solution

The fourth proportional to 15,073.41, 20,790.90 and 10,349.49 is: 14,275.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,073.41 : 20,790.90 = 10,349.49 : x
  2. Step 2: Convert to fraction form
    15,073.41/20,790.90 = 10,349.49/x
  3. Step 3: Cross multiply
    15,073.41x = 20,790.90 × 10,349.49
  4. Step 4: Simplify right side
    15,073.41x = 215,175,211.64
  5. Step 5: Solve for x
    x = 215,175,211.64/15,073.41
  6. Step 6: Final answer
    x = 14,275.15

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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.