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Finding the Fourth Proportional to 28,360.29, 42,540.44 and 7,583.25

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Solution

The fourth proportional to 28,360.29, 42,540.44 and 7,583.25 is: 11,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.29 : 42,540.44 = 7,583.25 : x
  2. Step 2: Convert to fraction form
    28,360.29/42,540.44 = 7,583.25/x
  3. Step 3: Cross multiply
    28,360.29x = 42,540.44 × 7,583.25
  4. Step 4: Simplify right side
    28,360.29x = 322,594,753.71
  5. Step 5: Solve for x
    x = 322,594,753.71/28,360.29
  6. Step 6: Final answer
    x = 11,374.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.