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Finding the Fourth Proportional to 15,028.41, 20,732.70 and 9,056.70

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Solution

The fourth proportional to 15,028.41, 20,732.70 and 9,056.70 is: 12,494.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028.41 : 20,732.70 = 9,056.70 : x
  2. Step 2: Convert to fraction form
    15,028.41/20,732.70 = 9,056.70/x
  3. Step 3: Cross multiply
    15,028.41x = 20,732.70 × 9,056.70
  4. Step 4: Simplify right side
    15,028.41x = 187,769,844.09
  5. Step 5: Solve for x
    x = 187,769,844.09/15,028.41
  6. Step 6: Final answer
    x = 12,494.33

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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.