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Finding the Fourth Proportional to 70,388.67, 105,617.70 and 32,951.28

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Solution

The fourth proportional to 70,388.67, 105,617.70 and 32,951.28 is: 49,443.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,388.67 : 105,617.70 = 32,951.28 : x
  2. Step 2: Convert to fraction form
    70,388.67/105,617.70 = 32,951.28/x
  3. Step 3: Cross multiply
    70,388.67x = 105,617.70 × 32,951.28
  4. Step 4: Simplify right side
    70,388.67x = 3,480,238,405.66
  5. Step 5: Solve for x
    x = 3,480,238,405.66/70,388.67
  6. Step 6: Final answer
    x = 49,443.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.