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Finding the Fourth Proportional to 9,911.12, 14,869.17 and 6,995.12

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Solution

The fourth proportional to 9,911.12, 14,869.17 and 6,995.12 is: 10,494.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.12 : 14,869.17 = 6,995.12 : x
  2. Step 2: Convert to fraction form
    9,911.12/14,869.17 = 6,995.12/x
  3. Step 3: Cross multiply
    9,911.12x = 14,869.17 × 6,995.12
  4. Step 4: Simplify right side
    9,911.12x = 104,011,554.10
  5. Step 5: Solve for x
    x = 104,011,554.10/9,911.12
  6. Step 6: Final answer
    x = 10,494.44

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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.