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Finding the Fourth Proportional to 14,445.62, 21,668.44 and 5,211.62

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Solution

The fourth proportional to 14,445.62, 21,668.44 and 5,211.62 is: 7,817.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,445.62 : 21,668.44 = 5,211.62 : x
  2. Step 2: Convert to fraction form
    14,445.62/21,668.44 = 5,211.62/x
  3. Step 3: Cross multiply
    14,445.62x = 21,668.44 × 5,211.62
  4. Step 4: Simplify right side
    14,445.62x = 112,927,675.27
  5. Step 5: Solve for x
    x = 112,927,675.27/14,445.62
  6. Step 6: Final answer
    x = 7,817.43

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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.