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Finding the Fourth Proportional to 56,465.26, 84,725.52 and 39,931.54

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Solution

The fourth proportional to 56,465.26, 84,725.52 and 39,931.54 is: 59,916.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,465.26 : 84,725.52 = 39,931.54 : x
  2. Step 2: Convert to fraction form
    56,465.26/84,725.52 = 39,931.54/x
  3. Step 3: Cross multiply
    56,465.26x = 84,725.52 × 39,931.54
  4. Step 4: Simplify right side
    56,465.26x = 3,383,220,490.90
  5. Step 5: Solve for x
    x = 3,383,220,490.90/56,465.26
  6. Step 6: Final answer
    x = 59,916.85

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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.