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Finding the Fourth Proportional to 6,221.88, 8,585.63 and 3,703.58

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Solution

The fourth proportional to 6,221.88, 8,585.63 and 3,703.58 is: 5,110.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.88 : 8,585.63 = 3,703.58 : x
  2. Step 2: Convert to fraction form
    6,221.88/8,585.63 = 3,703.58/x
  3. Step 3: Cross multiply
    6,221.88x = 8,585.63 × 3,703.58
  4. Step 4: Simplify right side
    6,221.88x = 31,797,506.11
  5. Step 5: Solve for x
    x = 31,797,506.11/6,221.88
  6. Step 6: Final answer
    x = 5,110.59

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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.