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Finding the Fourth Proportional to 45,996.36, 68,994.79 and 13,975.74

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Solution

The fourth proportional to 45,996.36, 68,994.79 and 13,975.74 is: 20,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,996.36 : 68,994.79 = 13,975.74 : x
  2. Step 2: Convert to fraction form
    45,996.36/68,994.79 = 13,975.74/x
  3. Step 3: Cross multiply
    45,996.36x = 68,994.79 × 13,975.74
  4. Step 4: Simplify right side
    45,996.36x = 964,253,211.46
  5. Step 5: Solve for x
    x = 964,253,211.46/45,996.36
  6. Step 6: Final answer
    x = 20,963.69

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1.5x scale

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.