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Finding the Fourth Proportional to 14,995.98, 20,694.54 and 8,281.48

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Solution

The fourth proportional to 14,995.98, 20,694.54 and 8,281.48 is: 11,428.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,995.98 : 20,694.54 = 8,281.48 : x
  2. Step 2: Convert to fraction form
    14,995.98/20,694.54 = 8,281.48/x
  3. Step 3: Cross multiply
    14,995.98x = 20,694.54 × 8,281.48
  4. Step 4: Simplify right side
    14,995.98x = 171,381,419.12
  5. Step 5: Solve for x
    x = 171,381,419.12/14,995.98
  6. Step 6: Final answer
    x = 11,428.49

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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.