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Finding the Fourth Proportional to 67,275.52, 100,923.06 and 20,522.32

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Solution

The fourth proportional to 67,275.52, 100,923.06 and 20,522.32 is: 30,786.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,275.52 : 100,923.06 = 20,522.32 : x
  2. Step 2: Convert to fraction form
    67,275.52/100,923.06 = 20,522.32/x
  3. Step 3: Cross multiply
    67,275.52x = 100,923.06 × 20,522.32
  4. Step 4: Simplify right side
    67,275.52x = 2,071,175,332.70
  5. Step 5: Solve for x
    x = 2,071,175,332.70/67,275.52
  6. Step 6: Final answer
    x = 30,786.46

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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.