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Finding the Fourth Proportional to 11,627.30, 17,440.95 and 3,419.30

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Solution

The fourth proportional to 11,627.30, 17,440.95 and 3,419.30 is: 5,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,627.30 : 17,440.95 = 3,419.30 : x
  2. Step 2: Convert to fraction form
    11,627.30/17,440.95 = 3,419.30/x
  3. Step 3: Cross multiply
    11,627.30x = 17,440.95 × 3,419.30
  4. Step 4: Simplify right side
    11,627.30x = 59,635,805.71
  5. Step 5: Solve for x
    x = 59,635,805.71/11,627.30
  6. Step 6: Final answer
    x = 5,128.95

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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.