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Finding the Fourth Proportional to 58,813.08, 81,134.64 and 33,648

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Solution

The fourth proportional to 58,813.08, 81,134.64 and 33,648 is: 46,418.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,813.08 : 81,134.64 = 33,648 : x
  2. Step 2: Convert to fraction form
    58,813.08/81,134.64 = 33,648/x
  3. Step 3: Cross multiply
    58,813.08x = 81,134.64 × 33,648
  4. Step 4: Simplify right side
    58,813.08x = 2,730,018,366.72
  5. Step 5: Solve for x
    x = 2,730,018,366.72/58,813.08
  6. Step 6: Final answer
    x = 46,418.56

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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.