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Finding the Fourth Proportional to 64,618.83, 89,173.98 and 36,324.52

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Solution

The fourth proportional to 64,618.83, 89,173.98 and 36,324.52 is: 50,127.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,618.83 : 89,173.98 = 36,324.52 : x
  2. Step 2: Convert to fraction form
    64,618.83/89,173.98 = 36,324.52/x
  3. Step 3: Cross multiply
    64,618.83x = 89,173.98 × 36,324.52
  4. Step 4: Simplify right side
    64,618.83x = 3,239,201,797.05
  5. Step 5: Solve for x
    x = 3,239,201,797.05/64,618.83
  6. Step 6: Final answer
    x = 50,127.83

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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.