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Finding the Fourth Proportional to 56,889.12, 85,333.74 and 19,449.56

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Solution

The fourth proportional to 56,889.12, 85,333.74 and 19,449.56 is: 29,174.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,889.12 : 85,333.74 = 19,449.56 : x
  2. Step 2: Convert to fraction form
    56,889.12/85,333.74 = 19,449.56/x
  3. Step 3: Cross multiply
    56,889.12x = 85,333.74 × 19,449.56
  4. Step 4: Simplify right side
    56,889.12x = 1,659,703,696.15
  5. Step 5: Solve for x
    x = 1,659,703,696.15/56,889.12
  6. Step 6: Final answer
    x = 29,174.36

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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.