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Finding the Fourth Proportional to 47,793.12, 71,689.56 and 14,961.12

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Solution

The fourth proportional to 47,793.12, 71,689.56 and 14,961.12 is: 22,441.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,793.12 : 71,689.56 = 14,961.12 : x
  2. Step 2: Convert to fraction form
    47,793.12/71,689.56 = 14,961.12/x
  3. Step 3: Cross multiply
    47,793.12x = 71,689.56 × 14,961.12
  4. Step 4: Simplify right side
    47,793.12x = 1,072,556,109.91
  5. Step 5: Solve for x
    x = 1,072,556,109.91/47,793.12
  6. Step 6: Final answer
    x = 22,441.64

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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.