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Finding the Fourth Proportional to 6,308.94, 8,707.05 and 4,069.92

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Solution

The fourth proportional to 6,308.94, 8,707.05 and 4,069.92 is: 5,616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,308.94 : 8,707.05 = 4,069.92 : x
  2. Step 2: Convert to fraction form
    6,308.94/8,707.05 = 4,069.92/x
  3. Step 3: Cross multiply
    6,308.94x = 8,707.05 × 4,069.92
  4. Step 4: Simplify right side
    6,308.94x = 35,436,996.94
  5. Step 5: Solve for x
    x = 35,436,996.94/6,308.94
  6. Step 6: Final answer
    x = 5,616.95

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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.