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Finding the Fourth Proportional to 6,174.97, 8,521.95 and 3,521.77

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Solution

The fourth proportional to 6,174.97, 8,521.95 and 3,521.77 is: 4,860.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,174.97 : 8,521.95 = 3,521.77 : x
  2. Step 2: Convert to fraction form
    6,174.97/8,521.95 = 3,521.77/x
  3. Step 3: Cross multiply
    6,174.97x = 8,521.95 × 3,521.77
  4. Step 4: Simplify right side
    6,174.97x = 30,012,347.85
  5. Step 5: Solve for x
    x = 30,012,347.85/6,174.97
  6. Step 6: Final answer
    x = 4,860.32

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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.