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Finding the Fourth Proportional to 58,603.28, 80,872.60 and 31,745.84

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Solution

The fourth proportional to 58,603.28, 80,872.60 and 31,745.84 is: 43,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,603.28 : 80,872.60 = 31,745.84 : x
  2. Step 2: Convert to fraction form
    58,603.28/80,872.60 = 31,745.84/x
  3. Step 3: Cross multiply
    58,603.28x = 80,872.60 × 31,745.84
  4. Step 4: Simplify right side
    58,603.28x = 2,567,368,619.98
  5. Step 5: Solve for x
    x = 2,567,368,619.98/58,603.28
  6. Step 6: Final answer
    x = 43,809.30

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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.