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Finding the Fourth Proportional to 69,356.56, 95,704.86 and 39,143.56

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Solution

The fourth proportional to 69,356.56, 95,704.86 and 39,143.56 is: 54,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,356.56 : 95,704.86 = 39,143.56 : x
  2. Step 2: Convert to fraction form
    69,356.56/95,704.86 = 39,143.56/x
  3. Step 3: Cross multiply
    69,356.56x = 95,704.86 × 39,143.56
  4. Step 4: Simplify right side
    69,356.56x = 3,746,228,929.70
  5. Step 5: Solve for x
    x = 3,746,228,929.70/69,356.56
  6. Step 6: Final answer
    x = 54,014.05

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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.