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Finding the Fourth Proportional to 14,915.14, 20,584.53 and 8,948.27

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Solution

The fourth proportional to 14,915.14, 20,584.53 and 8,948.27 is: 12,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,915.14 : 20,584.53 = 8,948.27 : x
  2. Step 2: Convert to fraction form
    14,915.14/20,584.53 = 8,948.27/x
  3. Step 3: Cross multiply
    14,915.14x = 20,584.53 × 8,948.27
  4. Step 4: Simplify right side
    14,915.14x = 184,195,983.72
  5. Step 5: Solve for x
    x = 184,195,983.72/14,915.14
  6. Step 6: Final answer
    x = 12,349.60

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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.