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Finding the Fourth Proportional to 14,573.69, 21,855.17 and 5,211.17

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Solution

The fourth proportional to 14,573.69, 21,855.17 and 5,211.17 is: 7,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,573.69 : 21,855.17 = 5,211.17 : x
  2. Step 2: Convert to fraction form
    14,573.69/21,855.17 = 5,211.17/x
  3. Step 3: Cross multiply
    14,573.69x = 21,855.17 × 5,211.17
  4. Step 4: Simplify right side
    14,573.69x = 113,890,980.19
  5. Step 5: Solve for x
    x = 113,890,980.19/14,573.69
  6. Step 6: Final answer
    x = 7,814.83

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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.