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Finding the Fourth Proportional to 15,961.71, 22,027.52 and 8,888.79

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Solution

The fourth proportional to 15,961.71, 22,027.52 and 8,888.79 is: 12,266.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,961.71 : 22,027.52 = 8,888.79 : x
  2. Step 2: Convert to fraction form
    15,961.71/22,027.52 = 8,888.79/x
  3. Step 3: Cross multiply
    15,961.71x = 22,027.52 × 8,888.79
  4. Step 4: Simplify right side
    15,961.71x = 195,797,955.06
  5. Step 5: Solve for x
    x = 195,797,955.06/15,961.71
  6. Step 6: Final answer
    x = 12,266.73

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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.