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Finding the Fourth Proportional to 11,641.88, 17,426.10 and 7,476.32

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Solution

The fourth proportional to 11,641.88, 17,426.10 and 7,476.32 is: 11,190.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,641.88 : 17,426.10 = 7,476.32 : x
  2. Step 2: Convert to fraction form
    11,641.88/17,426.10 = 7,476.32/x
  3. Step 3: Cross multiply
    11,641.88x = 17,426.10 × 7,476.32
  4. Step 4: Simplify right side
    11,641.88x = 130,283,099.95
  5. Step 5: Solve for x
    x = 130,283,099.95/11,641.88
  6. Step 6: Final answer
    x = 11,190.90

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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.