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Finding the Fourth Proportional to 5,207.55, 7,809.78 and 2,835.25

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Solution

The fourth proportional to 5,207.55, 7,809.78 and 2,835.25 is: 4,252.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.55 : 7,809.78 = 2,835.25 : x
  2. Step 2: Convert to fraction form
    5,207.55/7,809.78 = 2,835.25/x
  3. Step 3: Cross multiply
    5,207.55x = 7,809.78 × 2,835.25
  4. Step 4: Simplify right side
    5,207.55x = 22,142,664.57
  5. Step 5: Solve for x
    x = 22,142,664.57/5,207.55
  6. Step 6: Final answer
    x = 4,252.03

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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.