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Finding the Fourth Proportional to 58,390.57, 80,581.94 and 35,722.47

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Solution

The fourth proportional to 58,390.57, 80,581.94 and 35,722.47 is: 49,298.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,390.57 : 80,581.94 = 35,722.47 : x
  2. Step 2: Convert to fraction form
    58,390.57/80,581.94 = 35,722.47/x
  3. Step 3: Cross multiply
    58,390.57x = 80,581.94 × 35,722.47
  4. Step 4: Simplify right side
    58,390.57x = 2,878,585,738.45
  5. Step 5: Solve for x
    x = 2,878,585,738.45/58,390.57
  6. Step 6: Final answer
    x = 49,298.81

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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.