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Finding the Fourth Proportional to 14,896.65, 20,557.54 and 8,182.43

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Solution

The fourth proportional to 14,896.65, 20,557.54 and 8,182.43 is: 11,291.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,896.65 : 20,557.54 = 8,182.43 : x
  2. Step 2: Convert to fraction form
    14,896.65/20,557.54 = 8,182.43/x
  3. Step 3: Cross multiply
    14,896.65x = 20,557.54 × 8,182.43
  4. Step 4: Simplify right side
    14,896.65x = 168,210,560.17
  5. Step 5: Solve for x
    x = 168,210,560.17/14,896.65
  6. Step 6: Final answer
    x = 11,291.84

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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.