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Finding the Fourth Proportional to 65,167.18, 89,909.80 and 36,482.62

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Solution

The fourth proportional to 65,167.18, 89,909.80 and 36,482.62 is: 50,334.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,167.18 : 89,909.80 = 36,482.62 : x
  2. Step 2: Convert to fraction form
    65,167.18/89,909.80 = 36,482.62/x
  3. Step 3: Cross multiply
    65,167.18x = 89,909.80 × 36,482.62
  4. Step 4: Simplify right side
    65,167.18x = 3,280,145,067.68
  5. Step 5: Solve for x
    x = 3,280,145,067.68/65,167.18
  6. Step 6: Final answer
    x = 50,334.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.