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Finding the Fourth Proportional to 2,721.06, 4,107.18 and 2,721.06

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Solution

The fourth proportional to 2,721.06, 4,107.18 and 2,721.06 is: 4,107.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.06 : 4,107.18 = 2,721.06 : x
  2. Step 2: Convert to fraction form
    2,721.06/4,107.18 = 2,721.06/x
  3. Step 3: Cross multiply
    2,721.06x = 4,107.18 × 2,721.06
  4. Step 4: Simplify right side
    2,721.06x = 11,175,883.21
  5. Step 5: Solve for x
    x = 11,175,883.21/2,721.06
  6. Step 6: Final answer
    x = 4,107.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.