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Finding the Fourth Proportional to 56,650.32, 84,986.82 and 31,725.81

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Solution

The fourth proportional to 56,650.32, 84,986.82 and 31,725.81 is: 47,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,650.32 : 84,986.82 = 31,725.81 : x
  2. Step 2: Convert to fraction form
    56,650.32/84,986.82 = 31,725.81/x
  3. Step 3: Cross multiply
    56,650.32x = 84,986.82 × 31,725.81
  4. Step 4: Simplify right side
    56,650.32x = 2,696,275,703.82
  5. Step 5: Solve for x
    x = 2,696,275,703.82/56,650.32
  6. Step 6: Final answer
    x = 47,595.07

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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.