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Finding the Fourth Proportional to 30,788.03, 42,491.49 and 17,363.48

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Solution

The fourth proportional to 30,788.03, 42,491.49 and 17,363.48 is: 23,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,788.03 : 42,491.49 = 17,363.48 : x
  2. Step 2: Convert to fraction form
    30,788.03/42,491.49 = 17,363.48/x
  3. Step 3: Cross multiply
    30,788.03x = 42,491.49 × 17,363.48
  4. Step 4: Simplify right side
    30,788.03x = 737,800,136.79
  5. Step 5: Solve for x
    x = 737,800,136.79/30,788.03
  6. Step 6: Final answer
    x = 23,963.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.