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Finding the Fourth Proportional to 67,007.52, 100,522.08 and 20,256.48

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Solution

The fourth proportional to 67,007.52, 100,522.08 and 20,256.48 is: 30,387.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,007.52 : 100,522.08 = 20,256.48 : x
  2. Step 2: Convert to fraction form
    67,007.52/100,522.08 = 20,256.48/x
  3. Step 3: Cross multiply
    67,007.52x = 100,522.08 × 20,256.48
  4. Step 4: Simplify right side
    67,007.52x = 2,036,223,503.08
  5. Step 5: Solve for x
    x = 2,036,223,503.08/67,007.52
  6. Step 6: Final answer
    x = 30,387.98

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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.