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Finding the Fourth Proportional to 22,378.78, 33,637.92 and 14,111.92

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Solution

The fourth proportional to 22,378.78, 33,637.92 and 14,111.92 is: 21,211.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378.78 : 33,637.92 = 14,111.92 : x
  2. Step 2: Convert to fraction form
    22,378.78/33,637.92 = 14,111.92/x
  3. Step 3: Cross multiply
    22,378.78x = 33,637.92 × 14,111.92
  4. Step 4: Simplify right side
    22,378.78x = 474,695,636.01
  5. Step 5: Solve for x
    x = 474,695,636.01/22,378.78
  6. Step 6: Final answer
    x = 21,211.86

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1.5x scale

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.