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Finding the Fourth Proportional to 27,173.70, 37,486.95 and 19,220.31

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Solution

The fourth proportional to 27,173.70, 37,486.95 and 19,220.31 is: 26,515.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,173.70 : 37,486.95 = 19,220.31 : x
  2. Step 2: Convert to fraction form
    27,173.70/37,486.95 = 19,220.31/x
  3. Step 3: Cross multiply
    27,173.70x = 37,486.95 × 19,220.31
  4. Step 4: Simplify right side
    27,173.70x = 720,510,799.95
  5. Step 5: Solve for x
    x = 720,510,799.95/27,173.70
  6. Step 6: Final answer
    x = 26,515.01

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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.