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Finding the Fourth Proportional to 25,286.54, 37,948.78 and 9,507.11

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Solution

The fourth proportional to 25,286.54, 37,948.78 and 9,507.11 is: 14,267.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,286.54 : 37,948.78 = 9,507.11 : x
  2. Step 2: Convert to fraction form
    25,286.54/37,948.78 = 9,507.11/x
  3. Step 3: Cross multiply
    25,286.54x = 37,948.78 × 9,507.11
  4. Step 4: Simplify right side
    25,286.54x = 360,783,181.32
  5. Step 5: Solve for x
    x = 360,783,181.32/25,286.54
  6. Step 6: Final answer
    x = 14,267.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.