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Finding the Fourth Proportional to 15,196.73, 20,972.54 and 8,483.67

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Solution

The fourth proportional to 15,196.73, 20,972.54 and 8,483.67 is: 11,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196.73 : 20,972.54 = 8,483.67 : x
  2. Step 2: Convert to fraction form
    15,196.73/20,972.54 = 8,483.67/x
  3. Step 3: Cross multiply
    15,196.73x = 20,972.54 × 8,483.67
  4. Step 4: Simplify right side
    15,196.73x = 177,924,129.63
  5. Step 5: Solve for x
    x = 177,924,129.63/15,196.73
  6. Step 6: Final answer
    x = 11,708.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.