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Finding the Fourth Proportional to 25,993.35, 35,870.84 and 15,236.08

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Solution

The fourth proportional to 25,993.35, 35,870.84 and 15,236.08 is: 21,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,993.35 : 35,870.84 = 15,236.08 : x
  2. Step 2: Convert to fraction form
    25,993.35/35,870.84 = 15,236.08/x
  3. Step 3: Cross multiply
    25,993.35x = 35,870.84 × 15,236.08
  4. Step 4: Simplify right side
    25,993.35x = 546,530,987.91
  5. Step 5: Solve for x
    x = 546,530,987.91/25,993.35
  6. Step 6: Final answer
    x = 21,025.80

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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.