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Finding the Fourth Proportional to 65,168.62, 89,911.78 and 36,484.07

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Solution

The fourth proportional to 65,168.62, 89,911.78 and 36,484.07 is: 50,336.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,168.62 : 89,911.78 = 36,484.07 : x
  2. Step 2: Convert to fraction form
    65,168.62/89,911.78 = 36,484.07/x
  3. Step 3: Cross multiply
    65,168.62x = 89,911.78 × 36,484.07
  4. Step 4: Simplify right side
    65,168.62x = 3,280,347,134.58
  5. Step 5: Solve for x
    x = 3,280,347,134.58/65,168.62
  6. Step 6: Final answer
    x = 50,336.30

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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.