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Finding the Fourth Proportional to 70,046.65, 96,663.90 and 39,831.97

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Solution

The fourth proportional to 70,046.65, 96,663.90 and 39,831.97 is: 54,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,046.65 : 96,663.90 = 39,831.97 : x
  2. Step 2: Convert to fraction form
    70,046.65/96,663.90 = 39,831.97/x
  3. Step 3: Cross multiply
    70,046.65x = 96,663.90 × 39,831.97
  4. Step 4: Simplify right side
    70,046.65x = 3,850,313,564.88
  5. Step 5: Solve for x
    x = 3,850,313,564.88/70,046.65
  6. Step 6: Final answer
    x = 54,967.85

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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.