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Finding the Fourth Proportional to 5,058.53, 6,980.48 and 2,820.33

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Solution

The fourth proportional to 5,058.53, 6,980.48 and 2,820.33 is: 3,891.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,058.53 : 6,980.48 = 2,820.33 : x
  2. Step 2: Convert to fraction form
    5,058.53/6,980.48 = 2,820.33/x
  3. Step 3: Cross multiply
    5,058.53x = 6,980.48 × 2,820.33
  4. Step 4: Simplify right side
    5,058.53x = 19,687,257.16
  5. Step 5: Solve for x
    x = 19,687,257.16/5,058.53
  6. Step 6: Final answer
    x = 3,891.89

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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.