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Finding the Fourth Proportional to 7,435.32, 11,170.41 and 7,015.02

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Solution

The fourth proportional to 7,435.32, 11,170.41 and 7,015.02 is: 10,538.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,435.32 : 11,170.41 = 7,015.02 : x
  2. Step 2: Convert to fraction form
    7,435.32/11,170.41 = 7,015.02/x
  3. Step 3: Cross multiply
    7,435.32x = 11,170.41 × 7,015.02
  4. Step 4: Simplify right side
    7,435.32x = 78,360,649.56
  5. Step 5: Solve for x
    x = 78,360,649.56/7,435.32
  6. Step 6: Final answer
    x = 10,538.97

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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.