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Finding the Fourth Proportional to 11,995.68, 17,993.70 and 5,417.28

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Solution

The fourth proportional to 11,995.68, 17,993.70 and 5,417.28 is: 8,126.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.68 : 17,993.70 = 5,417.28 : x
  2. Step 2: Convert to fraction form
    11,995.68/17,993.70 = 5,417.28/x
  3. Step 3: Cross multiply
    11,995.68x = 17,993.70 × 5,417.28
  4. Step 4: Simplify right side
    11,995.68x = 97,476,911.14
  5. Step 5: Solve for x
    x = 97,476,911.14/11,995.68
  6. Step 6: Final answer
    x = 8,126.00

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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.