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Finding the Fourth Proportional to 11,098.10, 15,517.90 and 11,098.10

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Solution

The fourth proportional to 11,098.10, 15,517.90 and 11,098.10 is: 15,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,098.10 : 15,517.90 = 11,098.10 : x
  2. Step 2: Convert to fraction form
    11,098.10/15,517.90 = 11,098.10/x
  3. Step 3: Cross multiply
    11,098.10x = 15,517.90 × 11,098.10
  4. Step 4: Simplify right side
    11,098.10x = 172,219,205.99
  5. Step 5: Solve for x
    x = 172,219,205.99/11,098.10
  6. Step 6: Final answer
    x = 15,517.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.