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Finding the Fourth Proportional to 57,897.60, 86,700.60 and 55,273.20

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Solution

The fourth proportional to 57,897.60, 86,700.60 and 55,273.20 is: 82,770.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,897.60 : 86,700.60 = 55,273.20 : x
  2. Step 2: Convert to fraction form
    57,897.60/86,700.60 = 55,273.20/x
  3. Step 3: Cross multiply
    57,897.60x = 86,700.60 × 55,273.20
  4. Step 4: Simplify right side
    57,897.60x = 4,792,219,603.92
  5. Step 5: Solve for x
    x = 4,792,219,603.92/57,897.60
  6. Step 6: Final answer
    x = 82,770.61

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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.