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Finding the Fourth Proportional to 27,892.86, 38,447.91 and 27,339.90

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Solution

The fourth proportional to 27,892.86, 38,447.91 and 27,339.90 is: 37,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,892.86 : 38,447.91 = 27,339.90 : x
  2. Step 2: Convert to fraction form
    27,892.86/38,447.91 = 27,339.90/x
  3. Step 3: Cross multiply
    27,892.86x = 38,447.91 × 27,339.90
  4. Step 4: Simplify right side
    27,892.86x = 1,051,162,014.61
  5. Step 5: Solve for x
    x = 1,051,162,014.61/27,892.86
  6. Step 6: Final answer
    x = 37,685.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.