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Finding the Fourth Proportional to 22,612.72, 33,909.36 and 8,752

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Solution

The fourth proportional to 22,612.72, 33,909.36 and 8,752 is: 13,124.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.72 : 33,909.36 = 8,752 : x
  2. Step 2: Convert to fraction form
    22,612.72/33,909.36 = 8,752/x
  3. Step 3: Cross multiply
    22,612.72x = 33,909.36 × 8,752
  4. Step 4: Simplify right side
    22,612.72x = 296,774,718.72
  5. Step 5: Solve for x
    x = 296,774,718.72/22,612.72
  6. Step 6: Final answer
    x = 13,124.24

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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.