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Finding the Fourth Proportional to 14,620.30, 21,895.62 and 9,338.97

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Solution

The fourth proportional to 14,620.30, 21,895.62 and 9,338.97 is: 13,986.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620.30 : 21,895.62 = 9,338.97 : x
  2. Step 2: Convert to fraction form
    14,620.30/21,895.62 = 9,338.97/x
  3. Step 3: Cross multiply
    14,620.30x = 21,895.62 × 9,338.97
  4. Step 4: Simplify right side
    14,620.30x = 204,482,538.31
  5. Step 5: Solve for x
    x = 204,482,538.31/14,620.30
  6. Step 6: Final answer
    x = 13,986.21

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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.