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Finding the Fourth Proportional to 3,527.99, 5,292.25 and 1,188

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Solution

The fourth proportional to 3,527.99, 5,292.25 and 1,188 is: 1,782.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,527.99 : 5,292.25 = 1,188 : x
  2. Step 2: Convert to fraction form
    3,527.99/5,292.25 = 1,188/x
  3. Step 3: Cross multiply
    3,527.99x = 5,292.25 × 1,188
  4. Step 4: Simplify right side
    3,527.99x = 6,287,193
  5. Step 5: Solve for x
    x = 6,287,193/3,527.99
  6. Step 6: Final answer
    x = 1,782.09

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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.