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Finding the Fourth Proportional to 16,644.78, 22,980.78 and 10,679.13

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Solution

The fourth proportional to 16,644.78, 22,980.78 and 10,679.13 is: 14,744.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,644.78 : 22,980.78 = 10,679.13 : x
  2. Step 2: Convert to fraction form
    16,644.78/22,980.78 = 10,679.13/x
  3. Step 3: Cross multiply
    16,644.78x = 22,980.78 × 10,679.13
  4. Step 4: Simplify right side
    16,644.78x = 245,414,737.12
  5. Step 5: Solve for x
    x = 245,414,737.12/16,644.78
  6. Step 6: Final answer
    x = 14,744.25

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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.