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Finding the Fourth Proportional to 52,608.70, 72,601.75 and 28,737.60

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Solution

The fourth proportional to 52,608.70, 72,601.75 and 28,737.60 is: 39,658.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,608.70 : 72,601.75 = 28,737.60 : x
  2. Step 2: Convert to fraction form
    52,608.70/72,601.75 = 28,737.60/x
  3. Step 3: Cross multiply
    52,608.70x = 72,601.75 × 28,737.60
  4. Step 4: Simplify right side
    52,608.70x = 2,086,400,050.80
  5. Step 5: Solve for x
    x = 2,086,400,050.80/52,608.70
  6. Step 6: Final answer
    x = 39,658.84

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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.