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Finding the Fourth Proportional to 64,672.96, 89,256.92 and 36,384.08

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Solution

The fourth proportional to 64,672.96, 89,256.92 and 36,384.08 is: 50,214.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,672.96 : 89,256.92 = 36,384.08 : x
  2. Step 2: Convert to fraction form
    64,672.96/89,256.92 = 36,384.08/x
  3. Step 3: Cross multiply
    64,672.96x = 89,256.92 × 36,384.08
  4. Step 4: Simplify right side
    64,672.96x = 3,247,530,917.83
  5. Step 5: Solve for x
    x = 3,247,530,917.83/64,672.96
  6. Step 6: Final answer
    x = 50,214.66

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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.