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Finding the Fourth Proportional to 3,751.86, 5,177.57 and 2,759.01

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Solution

The fourth proportional to 3,751.86, 5,177.57 and 2,759.01 is: 3,807.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.86 : 5,177.57 = 2,759.01 : x
  2. Step 2: Convert to fraction form
    3,751.86/5,177.57 = 2,759.01/x
  3. Step 3: Cross multiply
    3,751.86x = 5,177.57 × 2,759.01
  4. Step 4: Simplify right side
    3,751.86x = 14,284,967.41
  5. Step 5: Solve for x
    x = 14,284,967.41/3,751.86
  6. Step 6: Final answer
    x = 3,807.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.