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Finding the Fourth Proportional to 56,765.88, 78,329.52 and 32,887.44

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Solution

The fourth proportional to 56,765.88, 78,329.52 and 32,887.44 is: 45,380.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,765.88 : 78,329.52 = 32,887.44 : x
  2. Step 2: Convert to fraction form
    56,765.88/78,329.52 = 32,887.44/x
  3. Step 3: Cross multiply
    56,765.88x = 78,329.52 × 32,887.44
  4. Step 4: Simplify right side
    56,765.88x = 2,576,057,389.23
  5. Step 5: Solve for x
    x = 2,576,057,389.23/56,765.88
  6. Step 6: Final answer
    x = 45,380.38

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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.