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Finding the Fourth Proportional to 58,015.86, 87,036.54 and 18,576.96

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Solution

The fourth proportional to 58,015.86, 87,036.54 and 18,576.96 is: 27,869.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,015.86 : 87,036.54 = 18,576.96 : x
  2. Step 2: Convert to fraction form
    58,015.86/87,036.54 = 18,576.96/x
  3. Step 3: Cross multiply
    58,015.86x = 87,036.54 × 18,576.96
  4. Step 4: Simplify right side
    58,015.86x = 1,616,874,322.12
  5. Step 5: Solve for x
    x = 1,616,874,322.12/58,015.86
  6. Step 6: Final answer
    x = 27,869.52

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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.