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Finding the Fourth Proportional to 2,713.99, 4,070.57 and 1,047.88

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Solution

The fourth proportional to 2,713.99, 4,070.57 and 1,047.88 is: 1,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,713.99 : 4,070.57 = 1,047.88 : x
  2. Step 2: Convert to fraction form
    2,713.99/4,070.57 = 1,047.88/x
  3. Step 3: Cross multiply
    2,713.99x = 4,070.57 × 1,047.88
  4. Step 4: Simplify right side
    2,713.99x = 4,265,453.48
  5. Step 5: Solve for x
    x = 4,265,453.48/2,713.99
  6. Step 6: Final answer
    x = 1,571.66

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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.