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Finding the Fourth Proportional to 58,987.43, 81,402.74 and 35,114.91

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Solution

The fourth proportional to 58,987.43, 81,402.74 and 35,114.91 is: 48,458.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,987.43 : 81,402.74 = 35,114.91 : x
  2. Step 2: Convert to fraction form
    58,987.43/81,402.74 = 35,114.91/x
  3. Step 3: Cross multiply
    58,987.43x = 81,402.74 × 35,114.91
  4. Step 4: Simplify right side
    58,987.43x = 2,858,449,888.85
  5. Step 5: Solve for x
    x = 2,858,449,888.85/58,987.43
  6. Step 6: Final answer
    x = 48,458.63

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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.