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Finding the Fourth Proportional to 56,388.43, 77,811.42 and 32,513.68

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Solution

The fourth proportional to 56,388.43, 77,811.42 and 32,513.68 is: 44,866.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,388.43 : 77,811.42 = 32,513.68 : x
  2. Step 2: Convert to fraction form
    56,388.43/77,811.42 = 32,513.68/x
  3. Step 3: Cross multiply
    56,388.43x = 77,811.42 × 32,513.68
  4. Step 4: Simplify right side
    56,388.43x = 2,529,935,610.23
  5. Step 5: Solve for x
    x = 2,529,935,610.23/56,388.43
  6. Step 6: Final answer
    x = 44,866.22

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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.