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Finding the Fourth Proportional to 28,532.34, 42,797.34 and 7,472.04

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Solution

The fourth proportional to 28,532.34, 42,797.34 and 7,472.04 is: 11,207.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.34 : 42,797.34 = 7,472.04 : x
  2. Step 2: Convert to fraction form
    28,532.34/42,797.34 = 7,472.04/x
  3. Step 3: Cross multiply
    28,532.34x = 42,797.34 × 7,472.04
  4. Step 4: Simplify right side
    28,532.34x = 319,783,436.37
  5. Step 5: Solve for x
    x = 319,783,436.37/28,532.34
  6. Step 6: Final answer
    x = 11,207.75

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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.