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Finding the Fourth Proportional to 14,644.53, 20,209.01 and 8,356.59

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Solution

The fourth proportional to 14,644.53, 20,209.01 and 8,356.59 is: 11,531.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,644.53 : 20,209.01 = 8,356.59 : x
  2. Step 2: Convert to fraction form
    14,644.53/20,209.01 = 8,356.59/x
  3. Step 3: Cross multiply
    14,644.53x = 20,209.01 × 8,356.59
  4. Step 4: Simplify right side
    14,644.53x = 168,878,369.09
  5. Step 5: Solve for x
    x = 168,878,369.09/14,644.53
  6. Step 6: Final answer
    x = 11,531.84

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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.