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Finding the Fourth Proportional to 27,571.97, 38,057.97 and 15,643.23

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Solution

The fourth proportional to 27,571.97, 38,057.97 and 15,643.23 is: 21,592.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,571.97 : 38,057.97 = 15,643.23 : x
  2. Step 2: Convert to fraction form
    27,571.97/38,057.97 = 15,643.23/x
  3. Step 3: Cross multiply
    27,571.97x = 38,057.97 × 15,643.23
  4. Step 4: Simplify right side
    27,571.97x = 595,349,578.04
  5. Step 5: Solve for x
    x = 595,349,578.04/27,571.97
  6. Step 6: Final answer
    x = 21,592.57

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Half scale
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Double scale
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Similar ratio
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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.