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Finding the Fourth Proportional to 58,509.63, 80,743.17 and 33,015.90

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Solution

The fourth proportional to 58,509.63, 80,743.17 and 33,015.90 is: 45,561.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,509.63 : 80,743.17 = 33,015.90 : x
  2. Step 2: Convert to fraction form
    58,509.63/80,743.17 = 33,015.90/x
  3. Step 3: Cross multiply
    58,509.63x = 80,743.17 × 33,015.90
  4. Step 4: Simplify right side
    58,509.63x = 2,665,808,426.40
  5. Step 5: Solve for x
    x = 2,665,808,426.40/58,509.63
  6. Step 6: Final answer
    x = 45,561.87

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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.