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Finding the Fourth Proportional to 64,708.22, 89,297.98 and 36,028.28

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Solution

The fourth proportional to 64,708.22, 89,297.98 and 36,028.28 is: 49,719.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,708.22 : 89,297.98 = 36,028.28 : x
  2. Step 2: Convert to fraction form
    64,708.22/89,297.98 = 36,028.28/x
  3. Step 3: Cross multiply
    64,708.22x = 89,297.98 × 36,028.28
  4. Step 4: Simplify right side
    64,708.22x = 3,217,252,626.87
  5. Step 5: Solve for x
    x = 3,217,252,626.87/64,708.22
  6. Step 6: Final answer
    x = 49,719.38

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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.