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Finding the Fourth Proportional to 43,480.60, 65,089.60 and 39,322.56

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Solution

The fourth proportional to 43,480.60, 65,089.60 and 39,322.56 is: 58,865.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,480.60 : 65,089.60 = 39,322.56 : x
  2. Step 2: Convert to fraction form
    43,480.60/65,089.60 = 39,322.56/x
  3. Step 3: Cross multiply
    43,480.60x = 65,089.60 × 39,322.56
  4. Step 4: Simplify right side
    43,480.60x = 2,559,489,957.75
  5. Step 5: Solve for x
    x = 2,559,489,957.75/43,480.60
  6. Step 6: Final answer
    x = 58,865.11

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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.