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Finding the Fourth Proportional to 27,270.40, 37,620.84 and 17,191.84

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Solution

The fourth proportional to 27,270.40, 37,620.84 and 17,191.84 is: 23,716.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,270.40 : 37,620.84 = 17,191.84 : x
  2. Step 2: Convert to fraction form
    27,270.40/37,620.84 = 17,191.84/x
  3. Step 3: Cross multiply
    27,270.40x = 37,620.84 × 17,191.84
  4. Step 4: Simplify right side
    27,270.40x = 646,771,461.95
  5. Step 5: Solve for x
    x = 646,771,461.95/27,270.40
  6. Step 6: Final answer
    x = 23,716.98

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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.