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Finding the Fourth Proportional to 72,615.48, 108,923.30 and 22,695.83

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Solution

The fourth proportional to 72,615.48, 108,923.30 and 22,695.83 is: 34,043.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,615.48 : 108,923.30 = 22,695.83 : x
  2. Step 2: Convert to fraction form
    72,615.48/108,923.30 = 22,695.83/x
  3. Step 3: Cross multiply
    72,615.48x = 108,923.30 × 22,695.83
  4. Step 4: Simplify right side
    72,615.48x = 2,472,104,699.84
  5. Step 5: Solve for x
    x = 2,472,104,699.84/72,615.48
  6. Step 6: Final answer
    x = 34,043.77

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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.