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Finding the Fourth Proportional to 5,787.90, 8,681.85 and 3,323.88

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Solution

The fourth proportional to 5,787.90, 8,681.85 and 3,323.88 is: 4,985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.90 : 8,681.85 = 3,323.88 : x
  2. Step 2: Convert to fraction form
    5,787.90/8,681.85 = 3,323.88/x
  3. Step 3: Cross multiply
    5,787.90x = 8,681.85 × 3,323.88
  4. Step 4: Simplify right side
    5,787.90x = 28,857,427.58
  5. Step 5: Solve for x
    x = 28,857,427.58/5,787.90
  6. Step 6: Final answer
    x = 4,985.82

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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.