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Finding the Fourth Proportional to 18,582.56, 27,886.52 and 7,490.12

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Solution

The fourth proportional to 18,582.56, 27,886.52 and 7,490.12 is: 11,240.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,582.56 : 27,886.52 = 7,490.12 : x
  2. Step 2: Convert to fraction form
    18,582.56/27,886.52 = 7,490.12/x
  3. Step 3: Cross multiply
    18,582.56x = 27,886.52 × 7,490.12
  4. Step 4: Simplify right side
    18,582.56x = 208,873,260.48
  5. Step 5: Solve for x
    x = 208,873,260.48/18,582.56
  6. Step 6: Final answer
    x = 11,240.29

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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.