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Finding the Fourth Proportional to 62,881.70, 86,776.32 and 35,662.96

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Solution

The fourth proportional to 62,881.70, 86,776.32 and 35,662.96 is: 49,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,881.70 : 86,776.32 = 35,662.96 : x
  2. Step 2: Convert to fraction form
    62,881.70/86,776.32 = 35,662.96/x
  3. Step 3: Cross multiply
    62,881.70x = 86,776.32 × 35,662.96
  4. Step 4: Simplify right side
    62,881.70x = 3,094,700,429.11
  5. Step 5: Solve for x
    x = 3,094,700,429.11/62,881.70
  6. Step 6: Final answer
    x = 49,214.65

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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.