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Finding the Fourth Proportional to 5,753.43, 8,630.55 and 1,858.14

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Solution

The fourth proportional to 5,753.43, 8,630.55 and 1,858.14 is: 2,787.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,753.43 : 8,630.55 = 1,858.14 : x
  2. Step 2: Convert to fraction form
    5,753.43/8,630.55 = 1,858.14/x
  3. Step 3: Cross multiply
    5,753.43x = 8,630.55 × 1,858.14
  4. Step 4: Simplify right side
    5,753.43x = 16,036,770.18
  5. Step 5: Solve for x
    x = 16,036,770.18/5,753.43
  6. Step 6: Final answer
    x = 2,787.34

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Double scale
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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.