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Finding the Fourth Proportional to 11,296.69, 15,589.01 and 6,820.02

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Solution

The fourth proportional to 11,296.69, 15,589.01 and 6,820.02 is: 9,411.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,296.69 : 15,589.01 = 6,820.02 : x
  2. Step 2: Convert to fraction form
    11,296.69/15,589.01 = 6,820.02/x
  3. Step 3: Cross multiply
    11,296.69x = 15,589.01 × 6,820.02
  4. Step 4: Simplify right side
    11,296.69x = 106,317,282.04
  5. Step 5: Solve for x
    x = 106,317,282.04/11,296.69
  6. Step 6: Final answer
    x = 9,411.37

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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.