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Finding the Fourth Proportional to 64,299.71, 96,414.34 and 19,914.14

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Solution

The fourth proportional to 64,299.71, 96,414.34 and 19,914.14 is: 29,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,299.71 : 96,414.34 = 19,914.14 : x
  2. Step 2: Convert to fraction form
    64,299.71/96,414.34 = 19,914.14/x
  3. Step 3: Cross multiply
    64,299.71x = 96,414.34 × 19,914.14
  4. Step 4: Simplify right side
    64,299.71x = 1,920,008,926.75
  5. Step 5: Solve for x
    x = 1,920,008,926.75/64,299.71
  6. Step 6: Final answer
    x = 29,860.30

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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.