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Finding the Fourth Proportional to 69,812.44, 96,339.84 and 38,766.64

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Solution

The fourth proportional to 69,812.44, 96,339.84 and 38,766.64 is: 53,497.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,812.44 : 96,339.84 = 38,766.64 : x
  2. Step 2: Convert to fraction form
    69,812.44/96,339.84 = 38,766.64/x
  3. Step 3: Cross multiply
    69,812.44x = 96,339.84 × 38,766.64
  4. Step 4: Simplify right side
    69,812.44x = 3,734,771,894.94
  5. Step 5: Solve for x
    x = 3,734,771,894.94/69,812.44
  6. Step 6: Final answer
    x = 53,497.23

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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.