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Finding the Fourth Proportional to 43,687.19, 65,516.72 and 14,098.10

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Solution

The fourth proportional to 43,687.19, 65,516.72 and 14,098.10 is: 21,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,687.19 : 65,516.72 = 14,098.10 : x
  2. Step 2: Convert to fraction form
    43,687.19/65,516.72 = 14,098.10/x
  3. Step 3: Cross multiply
    43,687.19x = 65,516.72 × 14,098.10
  4. Step 4: Simplify right side
    43,687.19x = 923,660,872.16
  5. Step 5: Solve for x
    x = 923,660,872.16/43,687.19
  6. Step 6: Final answer
    x = 21,142.60

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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.