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Finding the Fourth Proportional to 11,404.80, 17,116.80 and 5,566.40

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Solution

The fourth proportional to 11,404.80, 17,116.80 and 5,566.40 is: 8,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,404.80 : 17,116.80 = 5,566.40 : x
  2. Step 2: Convert to fraction form
    11,404.80/17,116.80 = 5,566.40/x
  3. Step 3: Cross multiply
    11,404.80x = 17,116.80 × 5,566.40
  4. Step 4: Simplify right side
    11,404.80x = 95,278,955.52
  5. Step 5: Solve for x
    x = 95,278,955.52/11,404.80
  6. Step 6: Final answer
    x = 8,354.29

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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.