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Finding the Fourth Proportional to 69,029.18, 103,478.16 and 43,998.97

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Solution

The fourth proportional to 69,029.18, 103,478.16 and 43,998.97 is: 65,956.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,029.18 : 103,478.16 = 43,998.97 : x
  2. Step 2: Convert to fraction form
    69,029.18/103,478.16 = 43,998.97/x
  3. Step 3: Cross multiply
    69,029.18x = 103,478.16 × 43,998.97
  4. Step 4: Simplify right side
    69,029.18x = 4,552,932,363.80
  5. Step 5: Solve for x
    x = 4,552,932,363.80/69,029.18
  6. Step 6: Final answer
    x = 65,956.63

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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.