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Finding the Fourth Proportional to 63,642.17, 87,816.44 and 36,779.49

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Solution

The fourth proportional to 63,642.17, 87,816.44 and 36,779.49 is: 50,750.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,642.17 : 87,816.44 = 36,779.49 : x
  2. Step 2: Convert to fraction form
    63,642.17/87,816.44 = 36,779.49/x
  3. Step 3: Cross multiply
    63,642.17x = 87,816.44 × 36,779.49
  4. Step 4: Simplify right side
    63,642.17x = 3,229,843,692.92
  5. Step 5: Solve for x
    x = 3,229,843,692.92/63,642.17
  6. Step 6: Final answer
    x = 50,750.06

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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.