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Finding the Fourth Proportional to 58,511.18, 80,745.17 and 31,653.62

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Solution

The fourth proportional to 58,511.18, 80,745.17 and 31,653.62 is: 43,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,511.18 : 80,745.17 = 31,653.62 : x
  2. Step 2: Convert to fraction form
    58,511.18/80,745.17 = 31,653.62/x
  3. Step 3: Cross multiply
    58,511.18x = 80,745.17 × 31,653.62
  4. Step 4: Simplify right side
    58,511.18x = 2,555,876,366.02
  5. Step 5: Solve for x
    x = 2,555,876,366.02/58,511.18
  6. Step 6: Final answer
    x = 43,681.85

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1.5x scale

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.