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Finding the Fourth Proportional to 9,220.29, 12,724.02 and 5,028.54

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Solution

The fourth proportional to 9,220.29, 12,724.02 and 5,028.54 is: 6,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.29 : 12,724.02 = 5,028.54 : x
  2. Step 2: Convert to fraction form
    9,220.29/12,724.02 = 5,028.54/x
  3. Step 3: Cross multiply
    9,220.29x = 12,724.02 × 5,028.54
  4. Step 4: Simplify right side
    9,220.29x = 63,983,243.53
  5. Step 5: Solve for x
    x = 63,983,243.53/9,220.29
  6. Step 6: Final answer
    x = 6,939.40

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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.