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Finding the Fourth Proportional to 25,648.83, 35,410.11 and 19,551.21

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Solution

The fourth proportional to 25,648.83, 35,410.11 and 19,551.21 is: 26,991.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,648.83 : 35,410.11 = 19,551.21 : x
  2. Step 2: Convert to fraction form
    25,648.83/35,410.11 = 19,551.21/x
  3. Step 3: Cross multiply
    25,648.83x = 35,410.11 × 19,551.21
  4. Step 4: Simplify right side
    25,648.83x = 692,310,290.63
  5. Step 5: Solve for x
    x = 692,310,290.63/25,648.83
  6. Step 6: Final answer
    x = 26,991.88

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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.