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Finding the Fourth Proportional to 69,612.41, 96,062.22 and 39,399.40

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Solution

The fourth proportional to 69,612.41, 96,062.22 and 39,399.40 is: 54,369.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,612.41 : 96,062.22 = 39,399.40 : x
  2. Step 2: Convert to fraction form
    69,612.41/96,062.22 = 39,399.40/x
  3. Step 3: Cross multiply
    69,612.41x = 96,062.22 × 39,399.40
  4. Step 4: Simplify right side
    69,612.41x = 3,784,793,590.51
  5. Step 5: Solve for x
    x = 3,784,793,590.51/69,612.41
  6. Step 6: Final answer
    x = 54,369.52

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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.