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Finding the Fourth Proportional to 38,533.76, 57,897.92 and 36,978.56

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Solution

The fourth proportional to 38,533.76, 57,897.92 and 36,978.56 is: 55,561.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,533.76 : 57,897.92 = 36,978.56 : x
  2. Step 2: Convert to fraction form
    38,533.76/57,897.92 = 36,978.56/x
  3. Step 3: Cross multiply
    38,533.76x = 57,897.92 × 36,978.56
  4. Step 4: Simplify right side
    38,533.76x = 2,140,981,708.60
  5. Step 5: Solve for x
    x = 2,140,981,708.60/38,533.76
  6. Step 6: Final answer
    x = 55,561.19

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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.