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Finding the Fourth Proportional to 29,145.92, 43,713.60 and 8,364.48

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Solution

The fourth proportional to 29,145.92, 43,713.60 and 8,364.48 is: 12,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,145.92 : 43,713.60 = 8,364.48 : x
  2. Step 2: Convert to fraction form
    29,145.92/43,713.60 = 8,364.48/x
  3. Step 3: Cross multiply
    29,145.92x = 43,713.60 × 8,364.48
  4. Step 4: Simplify right side
    29,145.92x = 365,641,532.93
  5. Step 5: Solve for x
    x = 365,641,532.93/29,145.92
  6. Step 6: Final answer
    x = 12,545.20

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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.