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Finding the Fourth Proportional to 7,762.40, 11,640.02 and 2,496.43

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Solution

The fourth proportional to 7,762.40, 11,640.02 and 2,496.43 is: 3,743.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,762.40 : 11,640.02 = 2,496.43 : x
  2. Step 2: Convert to fraction form
    7,762.40/11,640.02 = 2,496.43/x
  3. Step 3: Cross multiply
    7,762.40x = 11,640.02 × 2,496.43
  4. Step 4: Simplify right side
    7,762.40x = 29,058,497.20
  5. Step 5: Solve for x
    x = 29,058,497.20/7,762.40
  6. Step 6: Final answer
    x = 3,743.49

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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.