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Finding the Fourth Proportional to 58,316.62, 80,462.64 and 32,818

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Solution

The fourth proportional to 58,316.62, 80,462.64 and 32,818 is: 45,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,316.62 : 80,462.64 = 32,818 : x
  2. Step 2: Convert to fraction form
    58,316.62/80,462.64 = 32,818/x
  3. Step 3: Cross multiply
    58,316.62x = 80,462.64 × 32,818
  4. Step 4: Simplify right side
    58,316.62x = 2,640,622,919.52
  5. Step 5: Solve for x
    x = 2,640,622,919.52/58,316.62
  6. Step 6: Final answer
    x = 45,280.80

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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.