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Finding the Fourth Proportional to 43,423.25, 65,134.88 and 10,591.25

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Solution

The fourth proportional to 43,423.25, 65,134.88 and 10,591.25 is: 15,886.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,423.25 : 65,134.88 = 10,591.25 : x
  2. Step 2: Convert to fraction form
    43,423.25/65,134.88 = 10,591.25/x
  3. Step 3: Cross multiply
    43,423.25x = 65,134.88 × 10,591.25
  4. Step 4: Simplify right side
    43,423.25x = 689,859,744.84
  5. Step 5: Solve for x
    x = 689,859,744.84/43,423.25
  6. Step 6: Final answer
    x = 15,886.88

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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.