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Finding the Fourth Proportional to 62,948.64, 86,866.32 and 36,071.88

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Solution

The fourth proportional to 62,948.64, 86,866.32 and 36,071.88 is: 49,777.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,948.64 : 86,866.32 = 36,071.88 : x
  2. Step 2: Convert to fraction form
    62,948.64/86,866.32 = 36,071.88/x
  3. Step 3: Cross multiply
    62,948.64x = 86,866.32 × 36,071.88
  4. Step 4: Simplify right side
    62,948.64x = 3,133,431,471.08
  5. Step 5: Solve for x
    x = 3,133,431,471.08/62,948.64
  6. Step 6: Final answer
    x = 49,777.59

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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.