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Finding the Fourth Proportional to 11,064.30, 16,612.65 and 8,601.90

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Solution

The fourth proportional to 11,064.30, 16,612.65 and 8,601.90 is: 12,915.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,064.30 : 16,612.65 = 8,601.90 : x
  2. Step 2: Convert to fraction form
    11,064.30/16,612.65 = 8,601.90/x
  3. Step 3: Cross multiply
    11,064.30x = 16,612.65 × 8,601.90
  4. Step 4: Simplify right side
    11,064.30x = 142,900,354.04
  5. Step 5: Solve for x
    x = 142,900,354.04/11,064.30
  6. Step 6: Final answer
    x = 12,915.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.