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Finding the Fourth Proportional to 60,991.29, 91,040.22 and 53,800.92

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Solution

The fourth proportional to 60,991.29, 91,040.22 and 53,800.92 is: 80,307.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,991.29 : 91,040.22 = 53,800.92 : x
  2. Step 2: Convert to fraction form
    60,991.29/91,040.22 = 53,800.92/x
  3. Step 3: Cross multiply
    60,991.29x = 91,040.22 × 53,800.92
  4. Step 4: Simplify right side
    60,991.29x = 4,898,047,593.00
  5. Step 5: Solve for x
    x = 4,898,047,593.00/60,991.29
  6. Step 6: Final answer
    x = 80,307.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.