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Finding the Fourth Proportional to 25,393.82, 35,060.78 and 15,837.44

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Solution

The fourth proportional to 25,393.82, 35,060.78 and 15,837.44 is: 21,866.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,393.82 : 35,060.78 = 15,837.44 : x
  2. Step 2: Convert to fraction form
    25,393.82/35,060.78 = 15,837.44/x
  3. Step 3: Cross multiply
    25,393.82x = 35,060.78 × 15,837.44
  4. Step 4: Simplify right side
    25,393.82x = 555,272,863.89
  5. Step 5: Solve for x
    x = 555,272,863.89/25,393.82
  6. Step 6: Final answer
    x = 21,866.46

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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.