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Finding the Fourth Proportional to 14,591.84, 20,136.83 and 8,304.21

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Solution

The fourth proportional to 14,591.84, 20,136.83 and 8,304.21 is: 11,459.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,591.84 : 20,136.83 = 8,304.21 : x
  2. Step 2: Convert to fraction form
    14,591.84/20,136.83 = 8,304.21/x
  3. Step 3: Cross multiply
    14,591.84x = 20,136.83 × 8,304.21
  4. Step 4: Simplify right side
    14,591.84x = 167,220,423.53
  5. Step 5: Solve for x
    x = 167,220,423.53/14,591.84
  6. Step 6: Final answer
    x = 11,459.86

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Double scale
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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.