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Finding the Fourth Proportional to 52,609.70, 72,603.13 and 28,738.60

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Solution

The fourth proportional to 52,609.70, 72,603.13 and 28,738.60 is: 39,660.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,609.70 : 72,603.13 = 28,738.60 : x
  2. Step 2: Convert to fraction form
    52,609.70/72,603.13 = 28,738.60/x
  3. Step 3: Cross multiply
    52,609.70x = 72,603.13 × 28,738.60
  4. Step 4: Simplify right side
    52,609.70x = 2,086,512,311.82
  5. Step 5: Solve for x
    x = 2,086,512,311.82/52,609.70
  6. Step 6: Final answer
    x = 39,660.22

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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.