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Finding the Fourth Proportional to 3,058.71, 4,587.30 and 867.66

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Solution

The fourth proportional to 3,058.71, 4,587.30 and 867.66 is: 1,301.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.71 : 4,587.30 = 867.66 : x
  2. Step 2: Convert to fraction form
    3,058.71/4,587.30 = 867.66/x
  3. Step 3: Cross multiply
    3,058.71x = 4,587.30 × 867.66
  4. Step 4: Simplify right side
    3,058.71x = 3,980,216.72
  5. Step 5: Solve for x
    x = 3,980,216.72/3,058.71
  6. Step 6: Final answer
    x = 1,301.27

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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.