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Finding the Fourth Proportional to 14,486.70, 21,731.22 and 4,627.38

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Solution

The fourth proportional to 14,486.70, 21,731.22 and 4,627.38 is: 6,941.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,486.70 : 21,731.22 = 4,627.38 : x
  2. Step 2: Convert to fraction form
    14,486.70/21,731.22 = 4,627.38/x
  3. Step 3: Cross multiply
    14,486.70x = 21,731.22 × 4,627.38
  4. Step 4: Simplify right side
    14,486.70x = 100,558,612.80
  5. Step 5: Solve for x
    x = 100,558,612.80/14,486.70
  6. Step 6: Final answer
    x = 6,941.44

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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.