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Finding the Fourth Proportional to 5,292.24, 7,899.72 and 4,906.80

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Solution

The fourth proportional to 5,292.24, 7,899.72 and 4,906.80 is: 7,324.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292.24 : 7,899.72 = 4,906.80 : x
  2. Step 2: Convert to fraction form
    5,292.24/7,899.72 = 4,906.80/x
  3. Step 3: Cross multiply
    5,292.24x = 7,899.72 × 4,906.80
  4. Step 4: Simplify right side
    5,292.24x = 38,762,346.10
  5. Step 5: Solve for x
    x = 38,762,346.10/5,292.24
  6. Step 6: Final answer
    x = 7,324.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.