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Finding the Fourth Proportional to 67,962.71, 102,006.34 and 36,408.40

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Solution

The fourth proportional to 67,962.71, 102,006.34 and 36,408.40 is: 54,645.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,962.71 : 102,006.34 = 36,408.40 : x
  2. Step 2: Convert to fraction form
    67,962.71/102,006.34 = 36,408.40/x
  3. Step 3: Cross multiply
    67,962.71x = 102,006.34 × 36,408.40
  4. Step 4: Simplify right side
    67,962.71x = 3,713,887,629.26
  5. Step 5: Solve for x
    x = 3,713,887,629.26/67,962.71
  6. Step 6: Final answer
    x = 54,645.96

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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.