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Finding the Fourth Proportional to 2,058.85, 3,088.51 and 671.79

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Solution

The fourth proportional to 2,058.85, 3,088.51 and 671.79 is: 1,007.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.85 : 3,088.51 = 671.79 : x
  2. Step 2: Convert to fraction form
    2,058.85/3,088.51 = 671.79/x
  3. Step 3: Cross multiply
    2,058.85x = 3,088.51 × 671.79
  4. Step 4: Simplify right side
    2,058.85x = 2,074,828.45
  5. Step 5: Solve for x
    x = 2,074,828.45/2,058.85
  6. Step 6: Final answer
    x = 1,007.76

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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.