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Finding the Fourth Proportional to 62,294.78, 93,438.90 and 17,919.80

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Solution

The fourth proportional to 62,294.78, 93,438.90 and 17,919.80 is: 26,878.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,294.78 : 93,438.90 = 17,919.80 : x
  2. Step 2: Convert to fraction form
    62,294.78/93,438.90 = 17,919.80/x
  3. Step 3: Cross multiply
    62,294.78x = 93,438.90 × 17,919.80
  4. Step 4: Simplify right side
    62,294.78x = 1,674,405,933.03
  5. Step 5: Solve for x
    x = 1,674,405,933.03/62,294.78
  6. Step 6: Final answer
    x = 26,878.75

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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.