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Finding the Fourth Proportional to 70,678.60, 106,017.96 and 33,211.19

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Solution

The fourth proportional to 70,678.60, 106,017.96 and 33,211.19 is: 49,816.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,678.60 : 106,017.96 = 33,211.19 : x
  2. Step 2: Convert to fraction form
    70,678.60/106,017.96 = 33,211.19/x
  3. Step 3: Cross multiply
    70,678.60x = 106,017.96 × 33,211.19
  4. Step 4: Simplify right side
    70,678.60x = 3,520,982,612.97
  5. Step 5: Solve for x
    x = 3,520,982,612.97/70,678.60
  6. Step 6: Final answer
    x = 49,816.81

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1.5x scale

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.