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Finding the Fourth Proportional to 56,662.40, 84,799.20 and 51,996.80

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Solution

The fourth proportional to 56,662.40, 84,799.20 and 51,996.80 is: 77,816.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,662.40 : 84,799.20 = 51,996.80 : x
  2. Step 2: Convert to fraction form
    56,662.40/84,799.20 = 51,996.80/x
  3. Step 3: Cross multiply
    56,662.40x = 84,799.20 × 51,996.80
  4. Step 4: Simplify right side
    56,662.40x = 4,409,287,042.56
  5. Step 5: Solve for x
    x = 4,409,287,042.56/56,662.40
  6. Step 6: Final answer
    x = 77,816.81

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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.