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Finding the Fourth Proportional to 11,894.68, 17,842.20 and 3,572.92

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Solution

The fourth proportional to 11,894.68, 17,842.20 and 3,572.92 is: 5,359.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,894.68 : 17,842.20 = 3,572.92 : x
  2. Step 2: Convert to fraction form
    11,894.68/17,842.20 = 3,572.92/x
  3. Step 3: Cross multiply
    11,894.68x = 17,842.20 × 3,572.92
  4. Step 4: Simplify right side
    11,894.68x = 63,748,753.22
  5. Step 5: Solve for x
    x = 63,748,753.22/11,894.68
  6. Step 6: Final answer
    x = 5,359.43

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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.