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Finding the Fourth Proportional to 56,736.51, 85,119.81 and 17,293.98

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Solution

The fourth proportional to 56,736.51, 85,119.81 and 17,293.98 is: 25,945.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,736.51 : 85,119.81 = 17,293.98 : x
  2. Step 2: Convert to fraction form
    56,736.51/85,119.81 = 17,293.98/x
  3. Step 3: Cross multiply
    56,736.51x = 85,119.81 × 17,293.98
  4. Step 4: Simplify right side
    56,736.51x = 1,472,060,291.74
  5. Step 5: Solve for x
    x = 1,472,060,291.74/56,736.51
  6. Step 6: Final answer
    x = 25,945.56

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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.