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Finding the Fourth Proportional to 14,696.72, 20,321.34 and 14,459.32

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Solution

The fourth proportional to 14,696.72, 20,321.34 and 14,459.32 is: 19,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,696.72 : 20,321.34 = 14,459.32 : x
  2. Step 2: Convert to fraction form
    14,696.72/20,321.34 = 14,459.32/x
  3. Step 3: Cross multiply
    14,696.72x = 20,321.34 × 14,459.32
  4. Step 4: Simplify right side
    14,696.72x = 293,832,757.89
  5. Step 5: Solve for x
    x = 293,832,757.89/14,696.72
  6. Step 6: Final answer
    x = 19,993.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.