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Finding the Fourth Proportional to 19,239.29, 28,848.14 and 6,755.84

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Solution

The fourth proportional to 19,239.29, 28,848.14 and 6,755.84 is: 10,129.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,239.29 : 28,848.14 = 6,755.84 : x
  2. Step 2: Convert to fraction form
    19,239.29/28,848.14 = 6,755.84/x
  3. Step 3: Cross multiply
    19,239.29x = 28,848.14 × 6,755.84
  4. Step 4: Simplify right side
    19,239.29x = 194,893,384.36
  5. Step 5: Solve for x
    x = 194,893,384.36/19,239.29
  6. Step 6: Final answer
    x = 10,129.97

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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.