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Finding the Fourth Proportional to 72,929.84, 109,394.74 and 17,525.84

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Solution

The fourth proportional to 72,929.84, 109,394.74 and 17,525.84 is: 26,288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,929.84 : 109,394.74 = 17,525.84 : x
  2. Step 2: Convert to fraction form
    72,929.84/109,394.74 = 17,525.84/x
  3. Step 3: Cross multiply
    72,929.84x = 109,394.74 × 17,525.84
  4. Step 4: Simplify right side
    72,929.84x = 1,917,234,710.08
  5. Step 5: Solve for x
    x = 1,917,234,710.08/72,929.84
  6. Step 6: Final answer
    x = 26,288.76

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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.