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Finding the Fourth Proportional to 58,615.99, 80,893.46 and 33,121.69

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Solution

The fourth proportional to 58,615.99, 80,893.46 and 33,121.69 is: 45,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,615.99 : 80,893.46 = 33,121.69 : x
  2. Step 2: Convert to fraction form
    58,615.99/80,893.46 = 33,121.69/x
  3. Step 3: Cross multiply
    58,615.99x = 80,893.46 × 33,121.69
  4. Step 4: Simplify right side
    58,615.99x = 2,679,327,985.72
  5. Step 5: Solve for x
    x = 2,679,327,985.72/58,615.99
  6. Step 6: Final answer
    x = 45,709.85

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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.