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Finding the Fourth Proportional to 11,308.56, 15,603.03 and 6,772.74

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Solution

The fourth proportional to 11,308.56, 15,603.03 and 6,772.74 is: 9,344.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,308.56 : 15,603.03 = 6,772.74 : x
  2. Step 2: Convert to fraction form
    11,308.56/15,603.03 = 6,772.74/x
  3. Step 3: Cross multiply
    11,308.56x = 15,603.03 × 6,772.74
  4. Step 4: Simplify right side
    11,308.56x = 105,675,265.40
  5. Step 5: Solve for x
    x = 105,675,265.40/11,308.56
  6. Step 6: Final answer
    x = 9,344.71

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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.