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Finding the Fourth Proportional to 43,999.60, 65,909.80 and 27,308.40

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Solution

The fourth proportional to 43,999.60, 65,909.80 and 27,308.40 is: 40,906.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,999.60 : 65,909.80 = 27,308.40 : x
  2. Step 2: Convert to fraction form
    43,999.60/65,909.80 = 27,308.40/x
  3. Step 3: Cross multiply
    43,999.60x = 65,909.80 × 27,308.40
  4. Step 4: Simplify right side
    43,999.60x = 1,799,891,182.32
  5. Step 5: Solve for x
    x = 1,799,891,182.32/43,999.60
  6. Step 6: Final answer
    x = 40,906.99

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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.