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Finding the Fourth Proportional to 19,254.03, 28,890.29 and 9,387.92

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Solution

The fourth proportional to 19,254.03, 28,890.29 and 9,387.92 is: 14,086.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,254.03 : 28,890.29 = 9,387.92 : x
  2. Step 2: Convert to fraction form
    19,254.03/28,890.29 = 9,387.92/x
  3. Step 3: Cross multiply
    19,254.03x = 28,890.29 × 9,387.92
  4. Step 4: Simplify right side
    19,254.03x = 271,219,731.30
  5. Step 5: Solve for x
    x = 271,219,731.30/19,254.03
  6. Step 6: Final answer
    x = 14,086.39

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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.