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Finding the Fourth Proportional to 38,353.76, 57,533.76 and 10,651.76

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Solution

The fourth proportional to 38,353.76, 57,533.76 and 10,651.76 is: 15,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,353.76 : 57,533.76 = 10,651.76 : x
  2. Step 2: Convert to fraction form
    38,353.76/57,533.76 = 10,651.76/x
  3. Step 3: Cross multiply
    38,353.76x = 57,533.76 × 10,651.76
  4. Step 4: Simplify right side
    38,353.76x = 612,835,803.42
  5. Step 5: Solve for x
    x = 612,835,803.42/38,353.76
  6. Step 6: Final answer
    x = 15,978.51

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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.