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Finding the Fourth Proportional to 22,062.78, 30,455.28 and 14,993.28

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Solution

The fourth proportional to 22,062.78, 30,455.28 and 14,993.28 is: 20,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,062.78 : 30,455.28 = 14,993.28 : x
  2. Step 2: Convert to fraction form
    22,062.78/30,455.28 = 14,993.28/x
  3. Step 3: Cross multiply
    22,062.78x = 30,455.28 × 14,993.28
  4. Step 4: Simplify right side
    22,062.78x = 456,624,540.52
  5. Step 5: Solve for x
    x = 456,624,540.52/22,062.78
  6. Step 6: Final answer
    x = 20,696.60

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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.