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Finding the Fourth Proportional to 56,388.35, 77,816.22 and 31,859.27

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Solution

The fourth proportional to 56,388.35, 77,816.22 and 31,859.27 is: 43,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,388.35 : 77,816.22 = 31,859.27 : x
  2. Step 2: Convert to fraction form
    56,388.35/77,816.22 = 31,859.27/x
  3. Step 3: Cross multiply
    56,388.35x = 77,816.22 × 31,859.27
  4. Step 4: Simplify right side
    56,388.35x = 2,479,167,963.36
  5. Step 5: Solve for x
    x = 2,479,167,963.36/56,388.35
  6. Step 6: Final answer
    x = 43,965.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.