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Finding the Fourth Proportional to 58,560.31, 80,813.21 and 31,702.80

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Solution

The fourth proportional to 58,560.31, 80,813.21 and 31,702.80 is: 43,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,560.31 : 80,813.21 = 31,702.80 : x
  2. Step 2: Convert to fraction form
    58,560.31/80,813.21 = 31,702.80/x
  3. Step 3: Cross multiply
    58,560.31x = 80,813.21 × 31,702.80
  4. Step 4: Simplify right side
    58,560.31x = 2,562,005,033.99
  5. Step 5: Solve for x
    x = 2,562,005,033.99/58,560.31
  6. Step 6: Final answer
    x = 43,749.85

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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.