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Finding the Fourth Proportional to 25,226, 34,753.92 and 19,918.88

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Solution

The fourth proportional to 25,226, 34,753.92 and 19,918.88 is: 27,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,226 : 34,753.92 = 19,918.88 : x
  2. Step 2: Convert to fraction form
    25,226/34,753.92 = 19,918.88/x
  3. Step 3: Cross multiply
    25,226x = 34,753.92 × 19,918.88
  4. Step 4: Simplify right side
    25,226x = 692,259,162.01
  5. Step 5: Solve for x
    x = 692,259,162.01/25,226
  6. Step 6: Final answer
    x = 27,442.29

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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.