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Finding the Fourth Proportional to 61,200.55, 91,727.93 and 25,661.80

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Solution

The fourth proportional to 61,200.55, 91,727.93 and 25,661.80 is: 38,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,200.55 : 91,727.93 = 25,661.80 : x
  2. Step 2: Convert to fraction form
    61,200.55/91,727.93 = 25,661.80/x
  3. Step 3: Cross multiply
    61,200.55x = 91,727.93 × 25,661.80
  4. Step 4: Simplify right side
    61,200.55x = 2,353,903,665.77
  5. Step 5: Solve for x
    x = 2,353,903,665.77/61,200.55
  6. Step 6: Final answer
    x = 38,462.13

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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.