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Finding the Fourth Proportional to 45,902.79, 68,854.94 and 15,917.97

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Solution

The fourth proportional to 45,902.79, 68,854.94 and 15,917.97 is: 23,877.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,902.79 : 68,854.94 = 15,917.97 : x
  2. Step 2: Convert to fraction form
    45,902.79/68,854.94 = 15,917.97/x
  3. Step 3: Cross multiply
    45,902.79x = 68,854.94 × 15,917.97
  4. Step 4: Simplify right side
    45,902.79x = 1,096,031,107.58
  5. Step 5: Solve for x
    x = 1,096,031,107.58/45,902.79
  6. Step 6: Final answer
    x = 23,877.22

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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.