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Finding the Fourth Proportional to 14,643.97, 21,965.76 and 3,550.76

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Solution

The fourth proportional to 14,643.97, 21,965.76 and 3,550.76 is: 5,326.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,643.97 : 21,965.76 = 3,550.76 : x
  2. Step 2: Convert to fraction form
    14,643.97/21,965.76 = 3,550.76/x
  3. Step 3: Cross multiply
    14,643.97x = 21,965.76 × 3,550.76
  4. Step 4: Simplify right side
    14,643.97x = 77,995,141.98
  5. Step 5: Solve for x
    x = 77,995,141.98/14,643.97
  6. Step 6: Final answer
    x = 5,326.09

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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.