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Finding the Fourth Proportional to 3,058.74, 4,587.59 and 866.95

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Solution

The fourth proportional to 3,058.74, 4,587.59 and 866.95 is: 1,300.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.74 : 4,587.59 = 866.95 : x
  2. Step 2: Convert to fraction form
    3,058.74/4,587.59 = 866.95/x
  3. Step 3: Cross multiply
    3,058.74x = 4,587.59 × 866.95
  4. Step 4: Simplify right side
    3,058.74x = 3,977,222.78
  5. Step 5: Solve for x
    x = 3,977,222.78/3,058.74
  6. Step 6: Final answer
    x = 1,300.28

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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.