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Finding the Fourth Proportional to 58,856, 81,221.28 and 32,360

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Solution

The fourth proportional to 58,856, 81,221.28 and 32,360 is: 44,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,856 : 81,221.28 = 32,360 : x
  2. Step 2: Convert to fraction form
    58,856/81,221.28 = 32,360/x
  3. Step 3: Cross multiply
    58,856x = 81,221.28 × 32,360
  4. Step 4: Simplify right side
    58,856x = 2,628,320,620.80
  5. Step 5: Solve for x
    x = 2,628,320,620.80/58,856
  6. Step 6: Final answer
    x = 44,656.80

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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.