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Finding the Fourth Proportional to 58,699.81, 81,040.65 and 38,592.37

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Solution

The fourth proportional to 58,699.81, 81,040.65 and 38,592.37 is: 53,280.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,699.81 : 81,040.65 = 38,592.37 : x
  2. Step 2: Convert to fraction form
    58,699.81/81,040.65 = 38,592.37/x
  3. Step 3: Cross multiply
    58,699.81x = 81,040.65 × 38,592.37
  4. Step 4: Simplify right side
    58,699.81x = 3,127,550,556.88
  5. Step 5: Solve for x
    x = 3,127,550,556.88/58,699.81
  6. Step 6: Final answer
    x = 53,280.42

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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.