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Finding the Fourth Proportional to 16,139.13, 22,269.65 and 9,065.13

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Solution

The fourth proportional to 16,139.13, 22,269.65 and 9,065.13 is: 12,508.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,139.13 : 22,269.65 = 9,065.13 : x
  2. Step 2: Convert to fraction form
    16,139.13/22,269.65 = 9,065.13/x
  3. Step 3: Cross multiply
    16,139.13x = 22,269.65 × 9,065.13
  4. Step 4: Simplify right side
    16,139.13x = 201,877,226.98
  5. Step 5: Solve for x
    x = 201,877,226.98/16,139.13
  6. Step 6: Final answer
    x = 12,508.56

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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.