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Finding the Fourth Proportional to 11,572.84, 17,357.08 and 5,643.78

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Solution

The fourth proportional to 11,572.84, 17,357.08 and 5,643.78 is: 8,464.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,572.84 : 17,357.08 = 5,643.78 : x
  2. Step 2: Convert to fraction form
    11,572.84/17,357.08 = 5,643.78/x
  3. Step 3: Cross multiply
    11,572.84x = 17,357.08 × 5,643.78
  4. Step 4: Simplify right side
    11,572.84x = 97,959,540.96
  5. Step 5: Solve for x
    x = 97,959,540.96/11,572.84
  6. Step 6: Final answer
    x = 8,464.61

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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.