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Finding the Fourth Proportional to 17,914.80, 26,872.06 and 4,768.10

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Solution

The fourth proportional to 17,914.80, 26,872.06 and 4,768.10 is: 7,152.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,914.80 : 26,872.06 = 4,768.10 : x
  2. Step 2: Convert to fraction form
    17,914.80/26,872.06 = 4,768.10/x
  3. Step 3: Cross multiply
    17,914.80x = 26,872.06 × 4,768.10
  4. Step 4: Simplify right side
    17,914.80x = 128,128,669.29
  5. Step 5: Solve for x
    x = 128,128,669.29/17,914.80
  6. Step 6: Final answer
    x = 7,152.11

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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.