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Finding the Fourth Proportional to 16,242.24, 22,414.36 and 8,790.24

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Solution

The fourth proportional to 16,242.24, 22,414.36 and 8,790.24 is: 12,130.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,242.24 : 22,414.36 = 8,790.24 : x
  2. Step 2: Convert to fraction form
    16,242.24/22,414.36 = 8,790.24/x
  3. Step 3: Cross multiply
    16,242.24x = 22,414.36 × 8,790.24
  4. Step 4: Simplify right side
    16,242.24x = 197,027,603.85
  5. Step 5: Solve for x
    x = 197,027,603.85/16,242.24
  6. Step 6: Final answer
    x = 12,130.57

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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.