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Finding the Fourth Proportional to 63,539.72, 87,682.74 and 38,384.84

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Solution

The fourth proportional to 63,539.72, 87,682.74 and 38,384.84 is: 52,969.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,539.72 : 87,682.74 = 38,384.84 : x
  2. Step 2: Convert to fraction form
    63,539.72/87,682.74 = 38,384.84/x
  3. Step 3: Cross multiply
    63,539.72x = 87,682.74 × 38,384.84
  4. Step 4: Simplify right side
    63,539.72x = 3,365,687,945.66
  5. Step 5: Solve for x
    x = 3,365,687,945.66/63,539.72
  6. Step 6: Final answer
    x = 52,969.83

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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.