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Finding the Fourth Proportional to 13,216.32, 19,824.48 and 5,322.48

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Solution

The fourth proportional to 13,216.32, 19,824.48 and 5,322.48 is: 7,983.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.32 : 19,824.48 = 5,322.48 : x
  2. Step 2: Convert to fraction form
    13,216.32/19,824.48 = 5,322.48/x
  3. Step 3: Cross multiply
    13,216.32x = 19,824.48 × 5,322.48
  4. Step 4: Simplify right side
    13,216.32x = 105,515,398.31
  5. Step 5: Solve for x
    x = 105,515,398.31/13,216.32
  6. Step 6: Final answer
    x = 7,983.72

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Similar ratio
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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.