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Finding the Fourth Proportional to 16,242.54, 22,414.67 and 8,790.54

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Solution

The fourth proportional to 16,242.54, 22,414.67 and 8,790.54 is: 12,130.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,242.54 : 22,414.67 = 8,790.54 : x
  2. Step 2: Convert to fraction form
    16,242.54/22,414.67 = 8,790.54/x
  3. Step 3: Cross multiply
    16,242.54x = 22,414.67 × 8,790.54
  4. Step 4: Simplify right side
    16,242.54x = 197,037,053.22
  5. Step 5: Solve for x
    x = 197,037,053.22/16,242.54
  6. Step 6: Final answer
    x = 12,130.93

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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.