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Finding the Fourth Proportional to 25,863.44, 35,641.48 and 18,398.48

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Solution

The fourth proportional to 25,863.44, 35,641.48 and 18,398.48 is: 25,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,863.44 : 35,641.48 = 18,398.48 : x
  2. Step 2: Convert to fraction form
    25,863.44/35,641.48 = 18,398.48/x
  3. Step 3: Cross multiply
    25,863.44x = 35,641.48 × 18,398.48
  4. Step 4: Simplify right side
    25,863.44x = 655,749,056.95
  5. Step 5: Solve for x
    x = 655,749,056.95/25,863.44
  6. Step 6: Final answer
    x = 25,354.29

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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.