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Finding the Fourth Proportional to 25,796.61, 35,592.84 and 15,724.44

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Solution

The fourth proportional to 25,796.61, 35,592.84 and 15,724.44 is: 21,695.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,796.61 : 35,592.84 = 15,724.44 : x
  2. Step 2: Convert to fraction form
    25,796.61/35,592.84 = 15,724.44/x
  3. Step 3: Cross multiply
    25,796.61x = 35,592.84 × 15,724.44
  4. Step 4: Simplify right side
    25,796.61x = 559,677,477.01
  5. Step 5: Solve for x
    x = 559,677,477.01/25,796.61
  6. Step 6: Final answer
    x = 21,695.78

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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.