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Finding the Fourth Proportional to 58,991.04, 81,402.72 and 33,835.20

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Solution

The fourth proportional to 58,991.04, 81,402.72 and 33,835.20 is: 46,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,991.04 : 81,402.72 = 33,835.20 : x
  2. Step 2: Convert to fraction form
    58,991.04/81,402.72 = 33,835.20/x
  3. Step 3: Cross multiply
    58,991.04x = 81,402.72 × 33,835.20
  4. Step 4: Simplify right side
    58,991.04x = 2,754,277,311.74
  5. Step 5: Solve for x
    x = 2,754,277,311.74/58,991.04
  6. Step 6: Final answer
    x = 46,689.76

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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.