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Finding the Fourth Proportional to 52,679.74, 72,698.07 and 28,806.61

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Solution

The fourth proportional to 52,679.74, 72,698.07 and 28,806.61 is: 39,753.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,679.74 : 72,698.07 = 28,806.61 : x
  2. Step 2: Convert to fraction form
    52,679.74/72,698.07 = 28,806.61/x
  3. Step 3: Cross multiply
    52,679.74x = 72,698.07 × 28,806.61
  4. Step 4: Simplify right side
    52,679.74x = 2,094,184,950.24
  5. Step 5: Solve for x
    x = 2,094,184,950.24/52,679.74
  6. Step 6: Final answer
    x = 39,753.14

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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.