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Finding the Fourth Proportional to 58,447.92, 87,710.72 and 21,511.92

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Solution

The fourth proportional to 58,447.92, 87,710.72 and 21,511.92 is: 32,282.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,447.92 : 87,710.72 = 21,511.92 : x
  2. Step 2: Convert to fraction form
    58,447.92/87,710.72 = 21,511.92/x
  3. Step 3: Cross multiply
    58,447.92x = 87,710.72 × 21,511.92
  4. Step 4: Simplify right side
    58,447.92x = 1,886,825,884.22
  5. Step 5: Solve for x
    x = 1,886,825,884.22/58,447.92
  6. Step 6: Final answer
    x = 32,282.17

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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.