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Finding the Fourth Proportional to 7,042.56, 10,563.84 and 1,848

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Solution

The fourth proportional to 7,042.56, 10,563.84 and 1,848 is: 2,772

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.56 : 10,563.84 = 1,848 : x
  2. Step 2: Convert to fraction form
    7,042.56/10,563.84 = 1,848/x
  3. Step 3: Cross multiply
    7,042.56x = 10,563.84 × 1,848
  4. Step 4: Simplify right side
    7,042.56x = 19,521,976.32
  5. Step 5: Solve for x
    x = 19,521,976.32/7,042.56
  6. Step 6: Final answer
    x = 2,772

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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.