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Finding the Fourth Proportional to 63,649.76, 87,826.89 and 36,787.05

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Solution

The fourth proportional to 63,649.76, 87,826.89 and 36,787.05 is: 50,760.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,649.76 : 87,826.89 = 36,787.05 : x
  2. Step 2: Convert to fraction form
    63,649.76/87,826.89 = 36,787.05/x
  3. Step 3: Cross multiply
    63,649.76x = 87,826.89 × 36,787.05
  4. Step 4: Simplify right side
    63,649.76x = 3,230,892,009.84
  5. Step 5: Solve for x
    x = 3,230,892,009.84/63,649.76
  6. Step 6: Final answer
    x = 50,760.48

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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.