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Finding the Fourth Proportional to 19,096.40, 28,655.04 and 7,410.08

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Solution

The fourth proportional to 19,096.40, 28,655.04 and 7,410.08 is: 11,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,096.40 : 28,655.04 = 7,410.08 : x
  2. Step 2: Convert to fraction form
    19,096.40/28,655.04 = 7,410.08/x
  3. Step 3: Cross multiply
    19,096.40x = 28,655.04 × 7,410.08
  4. Step 4: Simplify right side
    19,096.40x = 212,336,138.80
  5. Step 5: Solve for x
    x = 212,336,138.80/19,096.40
  6. Step 6: Final answer
    x = 11,119.17

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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.