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Finding the Fourth Proportional to 8,858.24, 12,224.16 and 5,132

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Solution

The fourth proportional to 8,858.24, 12,224.16 and 5,132 is: 7,082.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.24 : 12,224.16 = 5,132 : x
  2. Step 2: Convert to fraction form
    8,858.24/12,224.16 = 5,132/x
  3. Step 3: Cross multiply
    8,858.24x = 12,224.16 × 5,132
  4. Step 4: Simplify right side
    8,858.24x = 62,734,389.12
  5. Step 5: Solve for x
    x = 62,734,389.12/8,858.24
  6. Step 6: Final answer
    x = 7,082.04

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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.