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Finding the Fourth Proportional to 20,627.52, 30,957.66 and 7,483.68

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Solution

The fourth proportional to 20,627.52, 30,957.66 and 7,483.68 is: 11,231.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.52 : 30,957.66 = 7,483.68 : x
  2. Step 2: Convert to fraction form
    20,627.52/30,957.66 = 7,483.68/x
  3. Step 3: Cross multiply
    20,627.52x = 30,957.66 × 7,483.68
  4. Step 4: Simplify right side
    20,627.52x = 231,677,220.99
  5. Step 5: Solve for x
    x = 231,677,220.99/20,627.52
  6. Step 6: Final answer
    x = 11,231.46

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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.