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Finding the Fourth Proportional to 8,800.02, 12,142.68 and 5,442.54

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Solution

The fourth proportional to 8,800.02, 12,142.68 and 5,442.54 is: 7,509.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,800.02 : 12,142.68 = 5,442.54 : x
  2. Step 2: Convert to fraction form
    8,800.02/12,142.68 = 5,442.54/x
  3. Step 3: Cross multiply
    8,800.02x = 12,142.68 × 5,442.54
  4. Step 4: Simplify right side
    8,800.02x = 66,087,021.61
  5. Step 5: Solve for x
    x = 66,087,021.61/8,800.02
  6. Step 6: Final answer
    x = 7,509.87

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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.