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Finding the Fourth Proportional to 63,991.65, 95,955.87 and 19,607.70

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Solution

The fourth proportional to 63,991.65, 95,955.87 and 19,607.70 is: 29,401.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,991.65 : 95,955.87 = 19,607.70 : x
  2. Step 2: Convert to fraction form
    63,991.65/95,955.87 = 19,607.70/x
  3. Step 3: Cross multiply
    63,991.65x = 95,955.87 × 19,607.70
  4. Step 4: Simplify right side
    63,991.65x = 1,881,474,345.56
  5. Step 5: Solve for x
    x = 1,881,474,345.56/63,991.65
  6. Step 6: Final answer
    x = 29,401.87

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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.