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Finding the Fourth Proportional to 7,505.10, 11,240.64 and 6,019.16

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Solution

The fourth proportional to 7,505.10, 11,240.64 and 6,019.16 is: 9,015.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,505.10 : 11,240.64 = 6,019.16 : x
  2. Step 2: Convert to fraction form
    7,505.10/11,240.64 = 6,019.16/x
  3. Step 3: Cross multiply
    7,505.10x = 11,240.64 × 6,019.16
  4. Step 4: Simplify right side
    7,505.10x = 67,659,154.46
  5. Step 5: Solve for x
    x = 67,659,154.46/7,505.10
  6. Step 6: Final answer
    x = 9,015.09

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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.