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Finding the Fourth Proportional to 58,679.64, 80,988.26 and 34,819.47

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Solution

The fourth proportional to 58,679.64, 80,988.26 and 34,819.47 is: 48,057.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,679.64 : 80,988.26 = 34,819.47 : x
  2. Step 2: Convert to fraction form
    58,679.64/80,988.26 = 34,819.47/x
  3. Step 3: Cross multiply
    58,679.64x = 80,988.26 × 34,819.47
  4. Step 4: Simplify right side
    58,679.64x = 2,819,968,115.32
  5. Step 5: Solve for x
    x = 2,819,968,115.32/58,679.64
  6. Step 6: Final answer
    x = 48,057.01

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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.