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Finding the Fourth Proportional to 22,356.50, 30,851.97 and 12,925.67

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Solution

The fourth proportional to 22,356.50, 30,851.97 and 12,925.67 is: 17,837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,356.50 : 30,851.97 = 12,925.67 : x
  2. Step 2: Convert to fraction form
    22,356.50/30,851.97 = 12,925.67/x
  3. Step 3: Cross multiply
    22,356.50x = 30,851.97 × 12,925.67
  4. Step 4: Simplify right side
    22,356.50x = 398,782,383.07
  5. Step 5: Solve for x
    x = 398,782,383.07/22,356.50
  6. Step 6: Final answer
    x = 17,837.42

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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.