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Finding the Fourth Proportional to 14,903.56, 20,569.42 and 8,619.56

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Solution

The fourth proportional to 14,903.56, 20,569.42 and 8,619.56 is: 11,896.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,903.56 : 20,569.42 = 8,619.56 : x
  2. Step 2: Convert to fraction form
    14,903.56/20,569.42 = 8,619.56/x
  3. Step 3: Cross multiply
    14,903.56x = 20,569.42 × 8,619.56
  4. Step 4: Simplify right side
    14,903.56x = 177,299,349.86
  5. Step 5: Solve for x
    x = 177,299,349.86/14,903.56
  6. Step 6: Final answer
    x = 11,896.44

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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.