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Finding the Fourth Proportional to 64,578.39, 89,114.74 and 36,282.25

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Solution

The fourth proportional to 64,578.39, 89,114.74 and 36,282.25 is: 50,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,578.39 : 89,114.74 = 36,282.25 : x
  2. Step 2: Convert to fraction form
    64,578.39/89,114.74 = 36,282.25/x
  3. Step 3: Cross multiply
    64,578.39x = 89,114.74 × 36,282.25
  4. Step 4: Simplify right side
    64,578.39x = 3,233,283,275.37
  5. Step 5: Solve for x
    x = 3,233,283,275.37/64,578.39
  6. Step 6: Final answer
    x = 50,067.57

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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.