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Finding the Fourth Proportional to 62,499.65, 93,759.20 and 20,936.93

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Solution

The fourth proportional to 62,499.65, 93,759.20 and 20,936.93 is: 31,408.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,499.65 : 93,759.20 = 20,936.93 : x
  2. Step 2: Convert to fraction form
    62,499.65/93,759.20 = 20,936.93/x
  3. Step 3: Cross multiply
    62,499.65x = 93,759.20 × 20,936.93
  4. Step 4: Simplify right side
    62,499.65x = 1,963,029,807.26
  5. Step 5: Solve for x
    x = 1,963,029,807.26/62,499.65
  6. Step 6: Final answer
    x = 31,408.65

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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.