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Finding the Fourth Proportional to 45,795.80, 68,667.21 and 14,197.47

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Solution

The fourth proportional to 45,795.80, 68,667.21 and 14,197.47 is: 21,287.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,795.80 : 68,667.21 = 14,197.47 : x
  2. Step 2: Convert to fraction form
    45,795.80/68,667.21 = 14,197.47/x
  3. Step 3: Cross multiply
    45,795.80x = 68,667.21 × 14,197.47
  4. Step 4: Simplify right side
    45,795.80x = 974,900,653.96
  5. Step 5: Solve for x
    x = 974,900,653.96/45,795.80
  6. Step 6: Final answer
    x = 21,287.99

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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.