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Finding the Fourth Proportional to 25,550.15, 38,565.21 and 25,550.15

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Solution

The fourth proportional to 25,550.15, 38,565.21 and 25,550.15 is: 38,565.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,550.15 : 38,565.21 = 25,550.15 : x
  2. Step 2: Convert to fraction form
    25,550.15/38,565.21 = 25,550.15/x
  3. Step 3: Cross multiply
    25,550.15x = 38,565.21 × 25,550.15
  4. Step 4: Simplify right side
    25,550.15x = 985,346,579.70
  5. Step 5: Solve for x
    x = 985,346,579.70/25,550.15
  6. Step 6: Final answer
    x = 38,565.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.