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Finding the Fourth Proportional to 64,769.46, 89,381.76 and 36,475.34

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Solution

The fourth proportional to 64,769.46, 89,381.76 and 36,475.34 is: 50,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,769.46 : 89,381.76 = 36,475.34 : x
  2. Step 2: Convert to fraction form
    64,769.46/89,381.76 = 36,475.34/x
  3. Step 3: Cross multiply
    64,769.46x = 89,381.76 × 36,475.34
  4. Step 4: Simplify right side
    64,769.46x = 3,260,230,085.80
  5. Step 5: Solve for x
    x = 3,260,230,085.80/64,769.46
  6. Step 6: Final answer
    x = 50,335.92

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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.