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Finding the Fourth Proportional to 16,215.84, 22,377.87 and 8,763.84

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Solution

The fourth proportional to 16,215.84, 22,377.87 and 8,763.84 is: 12,094.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,215.84 : 22,377.87 = 8,763.84 : x
  2. Step 2: Convert to fraction form
    16,215.84/22,377.87 = 8,763.84/x
  3. Step 3: Cross multiply
    16,215.84x = 22,377.87 × 8,763.84
  4. Step 4: Simplify right side
    16,215.84x = 196,116,072.22
  5. Step 5: Solve for x
    x = 196,116,072.22/16,215.84
  6. Step 6: Final answer
    x = 12,094.11

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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.