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Finding the Fourth Proportional to 7,935.98, 11,886.08 and 6,167.21

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Solution

The fourth proportional to 7,935.98, 11,886.08 and 6,167.21 is: 9,236.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.98 : 11,886.08 = 6,167.21 : x
  2. Step 2: Convert to fraction form
    7,935.98/11,886.08 = 6,167.21/x
  3. Step 3: Cross multiply
    7,935.98x = 11,886.08 × 6,167.21
  4. Step 4: Simplify right side
    7,935.98x = 73,303,861.17
  5. Step 5: Solve for x
    x = 73,303,861.17/7,935.98
  6. Step 6: Final answer
    x = 9,236.91

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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.