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Finding the Fourth Proportional to 61,186.92, 91,771.74 and 30,013.80

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Solution

The fourth proportional to 61,186.92, 91,771.74 and 30,013.80 is: 45,016.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,186.92 : 91,771.74 = 30,013.80 : x
  2. Step 2: Convert to fraction form
    61,186.92/91,771.74 = 30,013.80/x
  3. Step 3: Cross multiply
    61,186.92x = 91,771.74 × 30,013.80
  4. Step 4: Simplify right side
    61,186.92x = 2,754,418,650.01
  5. Step 5: Solve for x
    x = 2,754,418,650.01/61,186.92
  6. Step 6: Final answer
    x = 45,016.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.