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Finding the Fourth Proportional to 52,718.49, 72,750.90 and 28,844.91

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Solution

The fourth proportional to 52,718.49, 72,750.90 and 28,844.91 is: 39,805.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,718.49 : 72,750.90 = 28,844.91 : x
  2. Step 2: Convert to fraction form
    52,718.49/72,750.90 = 28,844.91/x
  3. Step 3: Cross multiply
    52,718.49x = 72,750.90 × 28,844.91
  4. Step 4: Simplify right side
    52,718.49x = 2,098,493,162.92
  5. Step 5: Solve for x
    x = 2,098,493,162.92/52,718.49
  6. Step 6: Final answer
    x = 39,805.64

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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.