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Finding the Fourth Proportional to 35,791.88, 49,392.79 and 20,887.88

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Solution

The fourth proportional to 35,791.88, 49,392.79 and 20,887.88 is: 28,825.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,791.88 : 49,392.79 = 20,887.88 : x
  2. Step 2: Convert to fraction form
    35,791.88/49,392.79 = 20,887.88/x
  3. Step 3: Cross multiply
    35,791.88x = 49,392.79 × 20,887.88
  4. Step 4: Simplify right side
    35,791.88x = 1,031,710,371.20
  5. Step 5: Solve for x
    x = 1,031,710,371.20/35,791.88
  6. Step 6: Final answer
    x = 28,825.27

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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.