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Finding the Fourth Proportional to 11,316.74, 16,934.98 and 8,348.16

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Solution

The fourth proportional to 11,316.74, 16,934.98 and 8,348.16 is: 12,492.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.74 : 16,934.98 = 8,348.16 : x
  2. Step 2: Convert to fraction form
    11,316.74/16,934.98 = 8,348.16/x
  3. Step 3: Cross multiply
    11,316.74x = 16,934.98 × 8,348.16
  4. Step 4: Simplify right side
    11,316.74x = 141,375,922.64
  5. Step 5: Solve for x
    x = 141,375,922.64/11,316.74
  6. Step 6: Final answer
    x = 12,492.64

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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.