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Finding the Fourth Proportional to 2,058.90, 3,086.99 and 1,134.90

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Solution

The fourth proportional to 2,058.90, 3,086.99 and 1,134.90 is: 1,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.90 : 3,086.99 = 1,134.90 : x
  2. Step 2: Convert to fraction form
    2,058.90/3,086.99 = 1,134.90/x
  3. Step 3: Cross multiply
    2,058.90x = 3,086.99 × 1,134.90
  4. Step 4: Simplify right side
    2,058.90x = 3,503,419.28
  5. Step 5: Solve for x
    x = 3,503,419.28/2,058.90
  6. Step 6: Final answer
    x = 1,701.60

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1.5x scale

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.