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Finding the Fourth Proportional to 11,438.08, 17,156.16 and 5,282.08

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Solution

The fourth proportional to 11,438.08, 17,156.16 and 5,282.08 is: 7,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.08 : 17,156.16 = 5,282.08 : x
  2. Step 2: Convert to fraction form
    11,438.08/17,156.16 = 5,282.08/x
  3. Step 3: Cross multiply
    11,438.08x = 17,156.16 × 5,282.08
  4. Step 4: Simplify right side
    11,438.08x = 90,620,209.61
  5. Step 5: Solve for x
    x = 90,620,209.61/11,438.08
  6. Step 6: Final answer
    x = 7,922.68

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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.