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Finding the Fourth Proportional to 22,173.76, 30,604.82 and 15,103

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Solution

The fourth proportional to 22,173.76, 30,604.82 and 15,103 is: 20,845.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,173.76 : 30,604.82 = 15,103 : x
  2. Step 2: Convert to fraction form
    22,173.76/30,604.82 = 15,103/x
  3. Step 3: Cross multiply
    22,173.76x = 30,604.82 × 15,103
  4. Step 4: Simplify right side
    22,173.76x = 462,224,596.46
  5. Step 5: Solve for x
    x = 462,224,596.46/22,173.76
  6. Step 6: Final answer
    x = 20,845.57

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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.