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Finding the Fourth Proportional to 10,609.50, 15,920.73 and 4,453.50

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Solution

The fourth proportional to 10,609.50, 15,920.73 and 4,453.50 is: 6,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,609.50 : 15,920.73 = 4,453.50 : x
  2. Step 2: Convert to fraction form
    10,609.50/15,920.73 = 4,453.50/x
  3. Step 3: Cross multiply
    10,609.50x = 15,920.73 × 4,453.50
  4. Step 4: Simplify right side
    10,609.50x = 70,902,971.06
  5. Step 5: Solve for x
    x = 70,902,971.06/10,609.50
  6. Step 6: Final answer
    x = 6,682.97

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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.