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Finding the Fourth Proportional to 63,381.99, 87,465.90 and 35,087.88

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Solution

The fourth proportional to 63,381.99, 87,465.90 and 35,087.88 is: 48,420.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,381.99 : 87,465.90 = 35,087.88 : x
  2. Step 2: Convert to fraction form
    63,381.99/87,465.90 = 35,087.88/x
  3. Step 3: Cross multiply
    63,381.99x = 87,465.90 × 35,087.88
  4. Step 4: Simplify right side
    63,381.99x = 3,068,993,003.29
  5. Step 5: Solve for x
    x = 3,068,993,003.29/63,381.99
  6. Step 6: Final answer
    x = 48,420.58

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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.