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Finding the Fourth Proportional to 5,857.52, 8,787.45 and 2,159.76

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Solution

The fourth proportional to 5,857.52, 8,787.45 and 2,159.76 is: 3,240.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,857.52 : 8,787.45 = 2,159.76 : x
  2. Step 2: Convert to fraction form
    5,857.52/8,787.45 = 2,159.76/x
  3. Step 3: Cross multiply
    5,857.52x = 8,787.45 × 2,159.76
  4. Step 4: Simplify right side
    5,857.52x = 18,978,783.01
  5. Step 5: Solve for x
    x = 18,978,783.01/5,857.52
  6. Step 6: Final answer
    x = 3,240.07

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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.