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Finding the Fourth Proportional to 43,357.15, 65,041.92 and 13,373.91

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Solution

The fourth proportional to 43,357.15, 65,041.92 and 13,373.91 is: 20,062.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,357.15 : 65,041.92 = 13,373.91 : x
  2. Step 2: Convert to fraction form
    43,357.15/65,041.92 = 13,373.91/x
  3. Step 3: Cross multiply
    43,357.15x = 65,041.92 × 13,373.91
  4. Step 4: Simplify right side
    43,357.15x = 869,864,784.31
  5. Step 5: Solve for x
    x = 869,864,784.31/43,357.15
  6. Step 6: Final answer
    x = 20,062.78

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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.