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Finding the Fourth Proportional to 43,875.40, 65,715.90 and 36,099.40

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Solution

The fourth proportional to 43,875.40, 65,715.90 and 36,099.40 is: 54,069.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,875.40 : 65,715.90 = 36,099.40 : x
  2. Step 2: Convert to fraction form
    43,875.40/65,715.90 = 36,099.40/x
  3. Step 3: Cross multiply
    43,875.40x = 65,715.90 × 36,099.40
  4. Step 4: Simplify right side
    43,875.40x = 2,372,304,560.46
  5. Step 5: Solve for x
    x = 2,372,304,560.46/43,875.40
  6. Step 6: Final answer
    x = 54,069.13

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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.