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Finding the Fourth Proportional to 64,518.75, 89,035.88 and 36,224.44

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Solution

The fourth proportional to 64,518.75, 89,035.88 and 36,224.44 is: 49,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,518.75 : 89,035.88 = 36,224.44 : x
  2. Step 2: Convert to fraction form
    64,518.75/89,035.88 = 36,224.44/x
  3. Step 3: Cross multiply
    64,518.75x = 89,035.88 × 36,224.44
  4. Step 4: Simplify right side
    64,518.75x = 3,225,274,489.20
  5. Step 5: Solve for x
    x = 3,225,274,489.20/64,518.75
  6. Step 6: Final answer
    x = 49,989.72

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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.