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Finding the Fourth Proportional to 27,672.98, 38,188.94 and 15,097.73

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Solution

The fourth proportional to 27,672.98, 38,188.94 and 15,097.73 is: 20,834.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,672.98 : 38,188.94 = 15,097.73 : x
  2. Step 2: Convert to fraction form
    27,672.98/38,188.94 = 15,097.73/x
  3. Step 3: Cross multiply
    27,672.98x = 38,188.94 × 15,097.73
  4. Step 4: Simplify right side
    27,672.98x = 576,566,038.67
  5. Step 5: Solve for x
    x = 576,566,038.67/27,672.98
  6. Step 6: Final answer
    x = 20,834.99

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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.