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Finding the Fourth Proportional to 72,953.06, 100,694.34 and 47,529.20

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Solution

The fourth proportional to 72,953.06, 100,694.34 and 47,529.20 is: 65,602.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,953.06 : 100,694.34 = 47,529.20 : x
  2. Step 2: Convert to fraction form
    72,953.06/100,694.34 = 47,529.20/x
  3. Step 3: Cross multiply
    72,953.06x = 100,694.34 × 47,529.20
  4. Step 4: Simplify right side
    72,953.06x = 4,785,921,424.73
  5. Step 5: Solve for x
    x = 4,785,921,424.73/72,953.06
  6. Step 6: Final answer
    x = 65,602.75

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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.