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Finding the Fourth Proportional to 45,800.49, 68,710.54 and 14,209.87

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Solution

The fourth proportional to 45,800.49, 68,710.54 and 14,209.87 is: 21,317.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,800.49 : 68,710.54 = 14,209.87 : x
  2. Step 2: Convert to fraction form
    45,800.49/68,710.54 = 14,209.87/x
  3. Step 3: Cross multiply
    45,800.49x = 68,710.54 × 14,209.87
  4. Step 4: Simplify right side
    45,800.49x = 976,367,841.03
  5. Step 5: Solve for x
    x = 976,367,841.03/45,800.49
  6. Step 6: Final answer
    x = 21,317.85

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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.