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Finding the Fourth Proportional to 69,854.90, 96,401.90 and 49,473.48

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Solution

The fourth proportional to 69,854.90, 96,401.90 and 49,473.48 is: 68,274.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,854.90 : 96,401.90 = 49,473.48 : x
  2. Step 2: Convert to fraction form
    69,854.90/96,401.90 = 49,473.48/x
  3. Step 3: Cross multiply
    69,854.90x = 96,401.90 × 49,473.48
  4. Step 4: Simplify right side
    69,854.90x = 4,769,337,224.24
  5. Step 5: Solve for x
    x = 4,769,337,224.24/69,854.90
  6. Step 6: Final answer
    x = 68,274.91

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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.