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Finding the Fourth Proportional to 32,368, 44,687.28 and 21,209.44

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Solution

The fourth proportional to 32,368, 44,687.28 and 21,209.44 is: 29,281.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,368 : 44,687.28 = 21,209.44 : x
  2. Step 2: Convert to fraction form
    32,368/44,687.28 = 21,209.44/x
  3. Step 3: Cross multiply
    32,368x = 44,687.28 × 21,209.44
  4. Step 4: Simplify right side
    32,368x = 947,792,183.92
  5. Step 5: Solve for x
    x = 947,792,183.92/32,368
  6. Step 6: Final answer
    x = 29,281.77

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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.