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Finding the Fourth Proportional to 29,288.80, 43,922.40 and 14,492.80

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Solution

The fourth proportional to 29,288.80, 43,922.40 and 14,492.80 is: 21,733.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,288.80 : 43,922.40 = 14,492.80 : x
  2. Step 2: Convert to fraction form
    29,288.80/43,922.40 = 14,492.80/x
  3. Step 3: Cross multiply
    29,288.80x = 43,922.40 × 14,492.80
  4. Step 4: Simplify right side
    29,288.80x = 636,558,558.72
  5. Step 5: Solve for x
    x = 636,558,558.72/29,288.80
  6. Step 6: Final answer
    x = 21,733.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.