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Finding the Fourth Proportional to 4,167.77, 6,251.77 and 1,393.93

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Solution

The fourth proportional to 4,167.77, 6,251.77 and 1,393.93 is: 2,090.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,167.77 : 6,251.77 = 1,393.93 : x
  2. Step 2: Convert to fraction form
    4,167.77/6,251.77 = 1,393.93/x
  3. Step 3: Cross multiply
    4,167.77x = 6,251.77 × 1,393.93
  4. Step 4: Simplify right side
    4,167.77x = 8,714,510.64
  5. Step 5: Solve for x
    x = 8,714,510.64/4,167.77
  6. Step 6: Final answer
    x = 2,090.93

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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.