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Finding the Fourth Proportional to 25,270.72, 37,907.88 and 7,738.28

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Solution

The fourth proportional to 25,270.72, 37,907.88 and 7,738.28 is: 11,607.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,270.72 : 37,907.88 = 7,738.28 : x
  2. Step 2: Convert to fraction form
    25,270.72/37,907.88 = 7,738.28/x
  3. Step 3: Cross multiply
    25,270.72x = 37,907.88 × 7,738.28
  4. Step 4: Simplify right side
    25,270.72x = 293,341,789.65
  5. Step 5: Solve for x
    x = 293,341,789.65/25,270.72
  6. Step 6: Final answer
    x = 11,607.97

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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.