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Finding the Fourth Proportional to 58,889.72, 81,270.66 and 33,739.28

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Solution

The fourth proportional to 58,889.72, 81,270.66 and 33,739.28 is: 46,561.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,889.72 : 81,270.66 = 33,739.28 : x
  2. Step 2: Convert to fraction form
    58,889.72/81,270.66 = 33,739.28/x
  3. Step 3: Cross multiply
    58,889.72x = 81,270.66 × 33,739.28
  4. Step 4: Simplify right side
    58,889.72x = 2,742,013,553.52
  5. Step 5: Solve for x
    x = 2,742,013,553.52/58,889.72
  6. Step 6: Final answer
    x = 46,561.84

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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.