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Finding the Fourth Proportional to 2,908.66, 4,361.61 and 1,058.47

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Solution

The fourth proportional to 2,908.66, 4,361.61 and 1,058.47 is: 1,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.66 : 4,361.61 = 1,058.47 : x
  2. Step 2: Convert to fraction form
    2,908.66/4,361.61 = 1,058.47/x
  3. Step 3: Cross multiply
    2,908.66x = 4,361.61 × 1,058.47
  4. Step 4: Simplify right side
    2,908.66x = 4,616,633.34
  5. Step 5: Solve for x
    x = 4,616,633.34/2,908.66
  6. Step 6: Final answer
    x = 1,587.20

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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.