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Finding the Fourth Proportional to 9,015.32, 13,515.78 and 5,914.64

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Solution

The fourth proportional to 9,015.32, 13,515.78 and 5,914.64 is: 8,867.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,015.32 : 13,515.78 = 5,914.64 : x
  2. Step 2: Convert to fraction form
    9,015.32/13,515.78 = 5,914.64/x
  3. Step 3: Cross multiply
    9,015.32x = 13,515.78 × 5,914.64
  4. Step 4: Simplify right side
    9,015.32x = 79,940,973.02
  5. Step 5: Solve for x
    x = 79,940,973.02/9,015.32
  6. Step 6: Final answer
    x = 8,867.24

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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.