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Finding the Fourth Proportional to 43,880.64, 65,667.84 and 35,890.88

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Solution

The fourth proportional to 43,880.64, 65,667.84 and 35,890.88 is: 53,711.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,880.64 : 65,667.84 = 35,890.88 : x
  2. Step 2: Convert to fraction form
    43,880.64/65,667.84 = 35,890.88/x
  3. Step 3: Cross multiply
    43,880.64x = 65,667.84 × 35,890.88
  4. Step 4: Simplify right side
    43,880.64x = 2,356,876,565.30
  5. Step 5: Solve for x
    x = 2,356,876,565.30/43,880.64
  6. Step 6: Final answer
    x = 53,711.08

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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.