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Finding the Fourth Proportional to 16,617.19, 22,918.76 and 10,649.42

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Solution

The fourth proportional to 16,617.19, 22,918.76 and 10,649.42 is: 14,687.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,617.19 : 22,918.76 = 10,649.42 : x
  2. Step 2: Convert to fraction form
    16,617.19/22,918.76 = 10,649.42/x
  3. Step 3: Cross multiply
    16,617.19x = 22,918.76 × 10,649.42
  4. Step 4: Simplify right side
    16,617.19x = 244,071,333.28
  5. Step 5: Solve for x
    x = 244,071,333.28/16,617.19
  6. Step 6: Final answer
    x = 14,687.88

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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.