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Finding the Fourth Proportional to 43,700.75, 65,551.17 and 10,868.75

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Solution

The fourth proportional to 43,700.75, 65,551.17 and 10,868.75 is: 16,303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,700.75 : 65,551.17 = 10,868.75 : x
  2. Step 2: Convert to fraction form
    43,700.75/65,551.17 = 10,868.75/x
  3. Step 3: Cross multiply
    43,700.75x = 65,551.17 × 10,868.75
  4. Step 4: Simplify right side
    43,700.75x = 712,459,278.94
  5. Step 5: Solve for x
    x = 712,459,278.94/43,700.75
  6. Step 6: Final answer
    x = 16,303.14

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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.