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Finding the Fourth Proportional to 5,564.77, 7,679.37 and 3,080.77

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Solution

The fourth proportional to 5,564.77, 7,679.37 and 3,080.77 is: 4,251.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,564.77 : 7,679.37 = 3,080.77 : x
  2. Step 2: Convert to fraction form
    5,564.77/7,679.37 = 3,080.77/x
  3. Step 3: Cross multiply
    5,564.77x = 7,679.37 × 3,080.77
  4. Step 4: Simplify right side
    5,564.77x = 23,658,393.87
  5. Step 5: Solve for x
    x = 23,658,393.87/5,564.77
  6. Step 6: Final answer
    x = 4,251.46

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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.