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Finding the Fourth Proportional to 15,197.34, 20,970.44 and 8,483.34

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Solution

The fourth proportional to 15,197.34, 20,970.44 and 8,483.34 is: 11,705.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,197.34 : 20,970.44 = 8,483.34 : x
  2. Step 2: Convert to fraction form
    15,197.34/20,970.44 = 8,483.34/x
  3. Step 3: Cross multiply
    15,197.34x = 20,970.44 × 8,483.34
  4. Step 4: Simplify right side
    15,197.34x = 177,899,372.47
  5. Step 5: Solve for x
    x = 177,899,372.47/15,197.34
  6. Step 6: Final answer
    x = 11,705.95

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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.