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Finding the Fourth Proportional to 11,774.52, 17,661.24 and 3,454.20

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Solution

The fourth proportional to 11,774.52, 17,661.24 and 3,454.20 is: 5,181.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,774.52 : 17,661.24 = 3,454.20 : x
  2. Step 2: Convert to fraction form
    11,774.52/17,661.24 = 3,454.20/x
  3. Step 3: Cross multiply
    11,774.52x = 17,661.24 × 3,454.20
  4. Step 4: Simplify right side
    11,774.52x = 61,005,455.21
  5. Step 5: Solve for x
    x = 61,005,455.21/11,774.52
  6. Step 6: Final answer
    x = 5,181.14

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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.