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Finding the Fourth Proportional to 22,484.54, 33,700.55 and 16,920

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Solution

The fourth proportional to 22,484.54, 33,700.55 and 16,920 is: 25,360.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,484.54 : 33,700.55 = 16,920 : x
  2. Step 2: Convert to fraction form
    22,484.54/33,700.55 = 16,920/x
  3. Step 3: Cross multiply
    22,484.54x = 33,700.55 × 16,920
  4. Step 4: Simplify right side
    22,484.54x = 570,213,306
  5. Step 5: Solve for x
    x = 570,213,306/22,484.54
  6. Step 6: Final answer
    x = 25,360.24

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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.