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Finding the Fourth Proportional to 5,865.90, 8,802.30 and 2,170.74

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Solution

The fourth proportional to 5,865.90, 8,802.30 and 2,170.74 is: 3,257.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,865.90 : 8,802.30 = 2,170.74 : x
  2. Step 2: Convert to fraction form
    5,865.90/8,802.30 = 2,170.74/x
  3. Step 3: Cross multiply
    5,865.90x = 8,802.30 × 2,170.74
  4. Step 4: Simplify right side
    5,865.90x = 19,107,504.70
  5. Step 5: Solve for x
    x = 19,107,504.70/5,865.90
  6. Step 6: Final answer
    x = 3,257.39

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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.