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Finding the Fourth Proportional to 64,850.76, 89,498.39 and 36,556.38

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Solution

The fourth proportional to 64,850.76, 89,498.39 and 36,556.38 is: 50,450.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,850.76 : 89,498.39 = 36,556.38 : x
  2. Step 2: Convert to fraction form
    64,850.76/89,498.39 = 36,556.38/x
  3. Step 3: Cross multiply
    64,850.76x = 89,498.39 × 36,556.38
  4. Step 4: Simplify right side
    64,850.76x = 3,271,736,971.45
  5. Step 5: Solve for x
    x = 3,271,736,971.45/64,850.76
  6. Step 6: Final answer
    x = 50,450.25

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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.