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Finding the Fourth Proportional to 64,650.38, 89,216.64 and 36,356.13

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Solution

The fourth proportional to 64,650.38, 89,216.64 and 36,356.13 is: 50,170.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,650.38 : 89,216.64 = 36,356.13 : x
  2. Step 2: Convert to fraction form
    64,650.38/89,216.64 = 36,356.13/x
  3. Step 3: Cross multiply
    64,650.38x = 89,216.64 × 36,356.13
  4. Step 4: Simplify right side
    64,650.38x = 3,243,571,762.00
  5. Step 5: Solve for x
    x = 3,243,571,762.00/64,650.38
  6. Step 6: Final answer
    x = 50,170.97

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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.