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Finding the Fourth Proportional to 63,392.36, 87,522.72 and 40,740.08

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Solution

The fourth proportional to 63,392.36, 87,522.72 and 40,740.08 is: 56,247.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,392.36 : 87,522.72 = 40,740.08 : x
  2. Step 2: Convert to fraction form
    63,392.36/87,522.72 = 40,740.08/x
  3. Step 3: Cross multiply
    63,392.36x = 87,522.72 × 40,740.08
  4. Step 4: Simplify right side
    63,392.36x = 3,565,682,614.62
  5. Step 5: Solve for x
    x = 3,565,682,614.62/63,392.36
  6. Step 6: Final answer
    x = 56,247.83

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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.