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Finding the Fourth Proportional to 15,197.76, 22,800.32 and 7,404.80

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Solution

The fourth proportional to 15,197.76, 22,800.32 and 7,404.80 is: 11,108.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,197.76 : 22,800.32 = 7,404.80 : x
  2. Step 2: Convert to fraction form
    15,197.76/22,800.32 = 7,404.80/x
  3. Step 3: Cross multiply
    15,197.76x = 22,800.32 × 7,404.80
  4. Step 4: Simplify right side
    15,197.76x = 168,831,809.54
  5. Step 5: Solve for x
    x = 168,831,809.54/15,197.76
  6. Step 6: Final answer
    x = 11,108.99

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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.