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Finding the Fourth Proportional to 5,787.56, 8,639.44 and 5,086.94

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Solution

The fourth proportional to 5,787.56, 8,639.44 and 5,086.94 is: 7,593.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.56 : 8,639.44 = 5,086.94 : x
  2. Step 2: Convert to fraction form
    5,787.56/8,639.44 = 5,086.94/x
  3. Step 3: Cross multiply
    5,787.56x = 8,639.44 × 5,086.94
  4. Step 4: Simplify right side
    5,787.56x = 43,948,312.91
  5. Step 5: Solve for x
    x = 43,948,312.91/5,787.56
  6. Step 6: Final answer
    x = 7,593.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.