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Finding the Fourth Proportional to 11,068.30, 16,591.65 and 9,901.90

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Solution

The fourth proportional to 11,068.30, 16,591.65 and 9,901.90 is: 14,843.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,068.30 : 16,591.65 = 9,901.90 : x
  2. Step 2: Convert to fraction form
    11,068.30/16,591.65 = 9,901.90/x
  3. Step 3: Cross multiply
    11,068.30x = 16,591.65 × 9,901.90
  4. Step 4: Simplify right side
    11,068.30x = 164,288,859.14
  5. Step 5: Solve for x
    x = 164,288,859.14/11,068.30
  6. Step 6: Final answer
    x = 14,843.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.