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Finding the Fourth Proportional to 16,040.79, 22,137.48 and 8,966.79

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Solution

The fourth proportional to 16,040.79, 22,137.48 and 8,966.79 is: 12,374.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,040.79 : 22,137.48 = 8,966.79 : x
  2. Step 2: Convert to fraction form
    16,040.79/22,137.48 = 8,966.79/x
  3. Step 3: Cross multiply
    16,040.79x = 22,137.48 × 8,966.79
  4. Step 4: Simplify right side
    16,040.79x = 198,502,134.29
  5. Step 5: Solve for x
    x = 198,502,134.29/16,040.79
  6. Step 6: Final answer
    x = 12,374.84

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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.