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Finding the Fourth Proportional to 6,368.85, 8,789.57 and 3,536.78

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Solution

The fourth proportional to 6,368.85, 8,789.57 and 3,536.78 is: 4,881.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.85 : 8,789.57 = 3,536.78 : x
  2. Step 2: Convert to fraction form
    6,368.85/8,789.57 = 3,536.78/x
  3. Step 3: Cross multiply
    6,368.85x = 8,789.57 × 3,536.78
  4. Step 4: Simplify right side
    6,368.85x = 31,086,727.02
  5. Step 5: Solve for x
    x = 31,086,727.02/6,368.85
  6. Step 6: Final answer
    x = 4,881.06

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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.