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Finding the Fourth Proportional to 15,873.59, 23,789.49 and 8,856.90

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Solution

The fourth proportional to 15,873.59, 23,789.49 and 8,856.90 is: 13,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,873.59 : 23,789.49 = 8,856.90 : x
  2. Step 2: Convert to fraction form
    15,873.59/23,789.49 = 8,856.90/x
  3. Step 3: Cross multiply
    15,873.59x = 23,789.49 × 8,856.90
  4. Step 4: Simplify right side
    15,873.59x = 210,701,192.59
  5. Step 5: Solve for x
    x = 210,701,192.59/15,873.59
  6. Step 6: Final answer
    x = 13,273.70

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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.