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Finding the Fourth Proportional to 19,063.31, 28,606.19 and 7,969.14

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Solution

The fourth proportional to 19,063.31, 28,606.19 and 7,969.14 is: 11,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,063.31 : 28,606.19 = 7,969.14 : x
  2. Step 2: Convert to fraction form
    19,063.31/28,606.19 = 7,969.14/x
  3. Step 3: Cross multiply
    19,063.31x = 28,606.19 × 7,969.14
  4. Step 4: Simplify right side
    19,063.31x = 227,966,693.13
  5. Step 5: Solve for x
    x = 227,966,693.13/19,063.31
  6. Step 6: Final answer
    x = 11,958.40

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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.