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Finding the Fourth Proportional to 64,524.30, 89,028.98 and 36,228.12

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Solution

The fourth proportional to 64,524.30, 89,028.98 and 36,228.12 is: 49,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,524.30 : 89,028.98 = 36,228.12 : x
  2. Step 2: Convert to fraction form
    64,524.30/89,028.98 = 36,228.12/x
  3. Step 3: Cross multiply
    64,524.30x = 89,028.98 × 36,228.12
  4. Step 4: Simplify right side
    64,524.30x = 3,225,352,570.92
  5. Step 5: Solve for x
    x = 3,225,352,570.92/64,524.30
  6. Step 6: Final answer
    x = 49,986.63

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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.