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Finding the Fourth Proportional to 7,493.70, 11,240.55 and 5,549.70

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Solution

The fourth proportional to 7,493.70, 11,240.55 and 5,549.70 is: 8,324.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,493.70 : 11,240.55 = 5,549.70 : x
  2. Step 2: Convert to fraction form
    7,493.70/11,240.55 = 5,549.70/x
  3. Step 3: Cross multiply
    7,493.70x = 11,240.55 × 5,549.70
  4. Step 4: Simplify right side
    7,493.70x = 62,381,680.34
  5. Step 5: Solve for x
    x = 62,381,680.34/7,493.70
  6. Step 6: Final answer
    x = 8,324.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.