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Finding the Fourth Proportional to 62,873.55, 86,785.74 and 40,273.29

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Solution

The fourth proportional to 62,873.55, 86,785.74 and 40,273.29 is: 55,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,873.55 : 86,785.74 = 40,273.29 : x
  2. Step 2: Convert to fraction form
    62,873.55/86,785.74 = 40,273.29/x
  3. Step 3: Cross multiply
    62,873.55x = 86,785.74 × 40,273.29
  4. Step 4: Simplify right side
    62,873.55x = 3,495,147,274.88
  5. Step 5: Solve for x
    x = 3,495,147,274.88/62,873.55
  6. Step 6: Final answer
    x = 55,590.11

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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.