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Finding the Fourth Proportional to 45,797.69, 68,700.64 and 12,517.93

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Solution

The fourth proportional to 45,797.69, 68,700.64 and 12,517.93 is: 18,778.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,797.69 : 68,700.64 = 12,517.93 : x
  2. Step 2: Convert to fraction form
    45,797.69/68,700.64 = 12,517.93/x
  3. Step 3: Cross multiply
    45,797.69x = 68,700.64 × 12,517.93
  4. Step 4: Simplify right side
    45,797.69x = 859,989,802.48
  5. Step 5: Solve for x
    x = 859,989,802.48/45,797.69
  6. Step 6: Final answer
    x = 18,778.02

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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.