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Finding the Fourth Proportional to 62,772, 86,633.04 and 36,276

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Solution

The fourth proportional to 62,772, 86,633.04 and 36,276 is: 50,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,772 : 86,633.04 = 36,276 : x
  2. Step 2: Convert to fraction form
    62,772/86,633.04 = 36,276/x
  3. Step 3: Cross multiply
    62,772x = 86,633.04 × 36,276
  4. Step 4: Simplify right side
    62,772x = 3,142,700,159.04
  5. Step 5: Solve for x
    x = 3,142,700,159.04/62,772
  6. Step 6: Final answer
    x = 50,065.32

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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.