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Finding the Fourth Proportional to 70,844.59, 106,286.28 and 20,924.65

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Solution

The fourth proportional to 70,844.59, 106,286.28 and 20,924.65 is: 31,392.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,844.59 : 106,286.28 = 20,924.65 : x
  2. Step 2: Convert to fraction form
    70,844.59/106,286.28 = 20,924.65/x
  3. Step 3: Cross multiply
    70,844.59x = 106,286.28 × 20,924.65
  4. Step 4: Simplify right side
    70,844.59x = 2,224,003,208.80
  5. Step 5: Solve for x
    x = 2,224,003,208.80/70,844.59
  6. Step 6: Final answer
    x = 31,392.70

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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.