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Finding the Fourth Proportional to 19,207.92, 28,809.44 and 7,529.34

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Solution

The fourth proportional to 19,207.92, 28,809.44 and 7,529.34 is: 11,293.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,207.92 : 28,809.44 = 7,529.34 : x
  2. Step 2: Convert to fraction form
    19,207.92/28,809.44 = 7,529.34/x
  3. Step 3: Cross multiply
    19,207.92x = 28,809.44 × 7,529.34
  4. Step 4: Simplify right side
    19,207.92x = 216,916,068.97
  5. Step 5: Solve for x
    x = 216,916,068.97/19,207.92
  6. Step 6: Final answer
    x = 11,293.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.