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Finding the Fourth Proportional to 22,445.54, 30,975.06 and 12,374.34

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Solution

The fourth proportional to 22,445.54, 30,975.06 and 12,374.34 is: 17,076.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,445.54 : 30,975.06 = 12,374.34 : x
  2. Step 2: Convert to fraction form
    22,445.54/30,975.06 = 12,374.34/x
  3. Step 3: Cross multiply
    22,445.54x = 30,975.06 × 12,374.34
  4. Step 4: Simplify right side
    22,445.54x = 383,295,923.96
  5. Step 5: Solve for x
    x = 383,295,923.96/22,445.54
  6. Step 6: Final answer
    x = 17,076.71

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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.