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Finding the Fourth Proportional to 63,720.04, 87,944.52 and 36,878.89

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Solution

The fourth proportional to 63,720.04, 87,944.52 and 36,878.89 is: 50,899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,720.04 : 87,944.52 = 36,878.89 : x
  2. Step 2: Convert to fraction form
    63,720.04/87,944.52 = 36,878.89/x
  3. Step 3: Cross multiply
    63,720.04x = 87,944.52 × 36,878.89
  4. Step 4: Simplify right side
    63,720.04x = 3,243,296,279.18
  5. Step 5: Solve for x
    x = 3,243,296,279.18/63,720.04
  6. Step 6: Final answer
    x = 50,899.16

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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.