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Finding the Fourth Proportional to 6,885.12, 10,328.10 and 6,069.06

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Solution

The fourth proportional to 6,885.12, 10,328.10 and 6,069.06 is: 9,103.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.12 : 10,328.10 = 6,069.06 : x
  2. Step 2: Convert to fraction form
    6,885.12/10,328.10 = 6,069.06/x
  3. Step 3: Cross multiply
    6,885.12x = 10,328.10 × 6,069.06
  4. Step 4: Simplify right side
    6,885.12x = 62,681,858.59
  5. Step 5: Solve for x
    x = 62,681,858.59/6,885.12
  6. Step 6: Final answer
    x = 9,103.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.