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Finding the Fourth Proportional to 5,187.57, 7,809.03 and 4,651.75

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Solution

The fourth proportional to 5,187.57, 7,809.03 and 4,651.75 is: 7,002.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.57 : 7,809.03 = 4,651.75 : x
  2. Step 2: Convert to fraction form
    5,187.57/7,809.03 = 4,651.75/x
  3. Step 3: Cross multiply
    5,187.57x = 7,809.03 × 4,651.75
  4. Step 4: Simplify right side
    5,187.57x = 36,325,655.30
  5. Step 5: Solve for x
    x = 36,325,655.30/5,187.57
  6. Step 6: Final answer
    x = 7,002.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.