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Finding the Fourth Proportional to 6,813.77, 9,406.88 and 4,425.89

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Solution

The fourth proportional to 6,813.77, 9,406.88 and 4,425.89 is: 6,110.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.77 : 9,406.88 = 4,425.89 : x
  2. Step 2: Convert to fraction form
    6,813.77/9,406.88 = 4,425.89/x
  3. Step 3: Cross multiply
    6,813.77x = 9,406.88 × 4,425.89
  4. Step 4: Simplify right side
    6,813.77x = 41,633,770.48
  5. Step 5: Solve for x
    x = 41,633,770.48/6,813.77
  6. Step 6: Final answer
    x = 6,110.24

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Half scale
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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.