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Finding the Fourth Proportional to 7,435.82, 11,171.16 and 7,015.52

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Solution

The fourth proportional to 7,435.82, 11,171.16 and 7,015.52 is: 10,539.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,435.82 : 11,171.16 = 7,015.52 : x
  2. Step 2: Convert to fraction form
    7,435.82/11,171.16 = 7,015.52/x
  3. Step 3: Cross multiply
    7,435.82x = 11,171.16 × 7,015.52
  4. Step 4: Simplify right side
    7,435.82x = 78,371,496.40
  5. Step 5: Solve for x
    x = 78,371,496.40/7,435.82
  6. Step 6: Final answer
    x = 10,539.72

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1.5x scale

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.