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Finding the Fourth Proportional to 28,063.30, 42,094.59 and 8,073.28

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Solution

The fourth proportional to 28,063.30, 42,094.59 and 8,073.28 is: 12,109.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063.30 : 42,094.59 = 8,073.28 : x
  2. Step 2: Convert to fraction form
    28,063.30/42,094.59 = 8,073.28/x
  3. Step 3: Cross multiply
    28,063.30x = 42,094.59 × 8,073.28
  4. Step 4: Simplify right side
    28,063.30x = 339,841,411.56
  5. Step 5: Solve for x
    x = 339,841,411.56/28,063.30
  6. Step 6: Final answer
    x = 12,109.82

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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.