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Finding the Fourth Proportional to 48,769.78, 73,154.70 and 11,833.78

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Solution

The fourth proportional to 48,769.78, 73,154.70 and 11,833.78 is: 17,750.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,769.78 : 73,154.70 = 11,833.78 : x
  2. Step 2: Convert to fraction form
    48,769.78/73,154.70 = 11,833.78/x
  3. Step 3: Cross multiply
    48,769.78x = 73,154.70 × 11,833.78
  4. Step 4: Simplify right side
    48,769.78x = 865,696,625.77
  5. Step 5: Solve for x
    x = 865,696,625.77/48,769.78
  6. Step 6: Final answer
    x = 17,750.68

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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.