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Finding the Fourth Proportional to 17,672.70, 26,509.05 and 5,360.70

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Solution

The fourth proportional to 17,672.70, 26,509.05 and 5,360.70 is: 8,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,672.70 : 26,509.05 = 5,360.70 : x
  2. Step 2: Convert to fraction form
    17,672.70/26,509.05 = 5,360.70/x
  3. Step 3: Cross multiply
    17,672.70x = 26,509.05 × 5,360.70
  4. Step 4: Simplify right side
    17,672.70x = 142,107,064.34
  5. Step 5: Solve for x
    x = 142,107,064.34/17,672.70
  6. Step 6: Final answer
    x = 8,041.05

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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.