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Finding the Fourth Proportional to 63,261.84, 87,310.02 and 36,403.80

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Solution

The fourth proportional to 63,261.84, 87,310.02 and 36,403.80 is: 50,242.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,261.84 : 87,310.02 = 36,403.80 : x
  2. Step 2: Convert to fraction form
    63,261.84/87,310.02 = 36,403.80/x
  3. Step 3: Cross multiply
    63,261.84x = 87,310.02 × 36,403.80
  4. Step 4: Simplify right side
    63,261.84x = 3,178,416,506.08
  5. Step 5: Solve for x
    x = 3,178,416,506.08/63,261.84
  6. Step 6: Final answer
    x = 50,242.24

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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.