Home / 43,266.79-64,897.11-11,678.65

Finding the Fourth Proportional to 43,266.79, 64,897.11 and 11,678.65

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Solution

The fourth proportional to 43,266.79, 64,897.11 and 11,678.65 is: 17,517.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,266.79 : 64,897.11 = 11,678.65 : x
  2. Step 2: Convert to fraction form
    43,266.79/64,897.11 = 11,678.65/x
  3. Step 3: Cross multiply
    43,266.79x = 64,897.11 × 11,678.65
  4. Step 4: Simplify right side
    43,266.79x = 757,910,633.70
  5. Step 5: Solve for x
    x = 757,910,633.70/43,266.79
  6. Step 6: Final answer
    x = 17,517.14

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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.