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Finding the Fourth Proportional to 67,326.36, 100,953.88 and 20,566.68

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Solution

The fourth proportional to 67,326.36, 100,953.88 and 20,566.68 is: 30,839.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,326.36 : 100,953.88 = 20,566.68 : x
  2. Step 2: Convert to fraction form
    67,326.36/100,953.88 = 20,566.68/x
  3. Step 3: Cross multiply
    67,326.36x = 100,953.88 × 20,566.68
  4. Step 4: Simplify right side
    67,326.36x = 2,076,286,144.72
  5. Step 5: Solve for x
    x = 2,076,286,144.72/67,326.36
  6. Step 6: Final answer
    x = 30,839.13

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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.