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Finding the Fourth Proportional to 58,070.88, 87,114.98 and 20,627.82

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Solution

The fourth proportional to 58,070.88, 87,114.98 and 20,627.82 is: 30,944.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,070.88 : 87,114.98 = 20,627.82 : x
  2. Step 2: Convert to fraction form
    58,070.88/87,114.98 = 20,627.82/x
  3. Step 3: Cross multiply
    58,070.88x = 87,114.98 × 20,627.82
  4. Step 4: Simplify right side
    58,070.88x = 1,796,992,126.74
  5. Step 5: Solve for x
    x = 1,796,992,126.74/58,070.88
  6. Step 6: Final answer
    x = 30,944.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.