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Finding the Fourth Proportional to 27,191.88, 40,792.14 and 11,609.64

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Solution

The fourth proportional to 27,191.88, 40,792.14 and 11,609.64 is: 17,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,191.88 : 40,792.14 = 11,609.64 : x
  2. Step 2: Convert to fraction form
    27,191.88/40,792.14 = 11,609.64/x
  3. Step 3: Cross multiply
    27,191.88x = 40,792.14 × 11,609.64
  4. Step 4: Simplify right side
    27,191.88x = 473,582,060.23
  5. Step 5: Solve for x
    x = 473,582,060.23/27,191.88
  6. Step 6: Final answer
    x = 17,416.30

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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.