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Finding the Fourth Proportional to 56,832.78, 85,273.74 and 30,506.78

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Solution

The fourth proportional to 56,832.78, 85,273.74 and 30,506.78 is: 45,773.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,832.78 : 85,273.74 = 30,506.78 : x
  2. Step 2: Convert to fraction form
    56,832.78/85,273.74 = 30,506.78/x
  3. Step 3: Cross multiply
    56,832.78x = 85,273.74 × 30,506.78
  4. Step 4: Simplify right side
    56,832.78x = 2,601,427,225.96
  5. Step 5: Solve for x
    x = 2,601,427,225.96/56,832.78
  6. Step 6: Final answer
    x = 45,773.36

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1.5x scale

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.