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Finding the Fourth Proportional to 5,632.49, 7,775.55 and 3,747.21

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Solution

The fourth proportional to 5,632.49, 7,775.55 and 3,747.21 is: 5,172.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,632.49 : 7,775.55 = 3,747.21 : x
  2. Step 2: Convert to fraction form
    5,632.49/7,775.55 = 3,747.21/x
  3. Step 3: Cross multiply
    5,632.49x = 7,775.55 × 3,747.21
  4. Step 4: Simplify right side
    5,632.49x = 29,136,618.72
  5. Step 5: Solve for x
    x = 29,136,618.72/5,632.49
  6. Step 6: Final answer
    x = 5,172.96

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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.