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Finding the Fourth Proportional to 62,919.04, 86,830.31 and 36,066.63

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Solution

The fourth proportional to 62,919.04, 86,830.31 and 36,066.63 is: 49,773.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,919.04 : 86,830.31 = 36,066.63 : x
  2. Step 2: Convert to fraction form
    62,919.04/86,830.31 = 36,066.63/x
  3. Step 3: Cross multiply
    62,919.04x = 86,830.31 × 36,066.63
  4. Step 4: Simplify right side
    62,919.04x = 3,131,676,663.56
  5. Step 5: Solve for x
    x = 3,131,676,663.56/62,919.04
  6. Step 6: Final answer
    x = 49,773.12

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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.