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Finding the Fourth Proportional to 14,694.67, 20,278.48 and 8,321.08

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Solution

The fourth proportional to 14,694.67, 20,278.48 and 8,321.08 is: 11,483.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,694.67 : 20,278.48 = 8,321.08 : x
  2. Step 2: Convert to fraction form
    14,694.67/20,278.48 = 8,321.08/x
  3. Step 3: Cross multiply
    14,694.67x = 20,278.48 × 8,321.08
  4. Step 4: Simplify right side
    14,694.67x = 168,738,854.36
  5. Step 5: Solve for x
    x = 168,738,854.36/14,694.67
  6. Step 6: Final answer
    x = 11,483.00

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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.