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Finding the Fourth Proportional to 6,170.40, 9,256.32 and 2,707.20

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Solution

The fourth proportional to 6,170.40, 9,256.32 and 2,707.20 is: 4,061.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,170.40 : 9,256.32 = 2,707.20 : x
  2. Step 2: Convert to fraction form
    6,170.40/9,256.32 = 2,707.20/x
  3. Step 3: Cross multiply
    6,170.40x = 9,256.32 × 2,707.20
  4. Step 4: Simplify right side
    6,170.40x = 25,058,709.50
  5. Step 5: Solve for x
    x = 25,058,709.50/6,170.40
  6. Step 6: Final answer
    x = 4,061.12

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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.