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Finding the Fourth Proportional to 16,354.66, 22,563.28 and 9,979.02

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Solution

The fourth proportional to 16,354.66, 22,563.28 and 9,979.02 is: 13,767.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,354.66 : 22,563.28 = 9,979.02 : x
  2. Step 2: Convert to fraction form
    16,354.66/22,563.28 = 9,979.02/x
  3. Step 3: Cross multiply
    16,354.66x = 22,563.28 × 9,979.02
  4. Step 4: Simplify right side
    16,354.66x = 225,159,422.39
  5. Step 5: Solve for x
    x = 225,159,422.39/16,354.66
  6. Step 6: Final answer
    x = 13,767.29

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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.