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Finding the Fourth Proportional to 10,690.24, 14,753.28 and 6,964.24

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Solution

The fourth proportional to 10,690.24, 14,753.28 and 6,964.24 is: 9,611.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,690.24 : 14,753.28 = 6,964.24 : x
  2. Step 2: Convert to fraction form
    10,690.24/14,753.28 = 6,964.24/x
  3. Step 3: Cross multiply
    10,690.24x = 14,753.28 × 6,964.24
  4. Step 4: Simplify right side
    10,690.24x = 102,745,382.71
  5. Step 5: Solve for x
    x = 102,745,382.71/10,690.24
  6. Step 6: Final answer
    x = 9,611.14

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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.