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Finding the Fourth Proportional to 64,812.96, 89,444.88 and 36,519.84

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Solution

The fourth proportional to 64,812.96, 89,444.88 and 36,519.84 is: 50,399.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,812.96 : 89,444.88 = 36,519.84 : x
  2. Step 2: Convert to fraction form
    64,812.96/89,444.88 = 36,519.84/x
  3. Step 3: Cross multiply
    64,812.96x = 89,444.88 × 36,519.84
  4. Step 4: Simplify right side
    64,812.96x = 3,266,512,706.42
  5. Step 5: Solve for x
    x = 3,266,512,706.42/64,812.96
  6. Step 6: Final answer
    x = 50,399.07

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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.