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Finding the Fourth Proportional to 37,643.67, 51,949.74 and 20,648.52

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Solution

The fourth proportional to 37,643.67, 51,949.74 and 20,648.52 is: 28,495.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,643.67 : 51,949.74 = 20,648.52 : x
  2. Step 2: Convert to fraction form
    37,643.67/51,949.74 = 20,648.52/x
  3. Step 3: Cross multiply
    37,643.67x = 51,949.74 × 20,648.52
  4. Step 4: Simplify right side
    37,643.67x = 1,072,684,882.39
  5. Step 5: Solve for x
    x = 1,072,684,882.39/37,643.67
  6. Step 6: Final answer
    x = 28,495.76

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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.