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Finding the Fourth Proportional to 5,048.76, 7,571.90 and 1,586

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Solution

The fourth proportional to 5,048.76, 7,571.90 and 1,586 is: 2,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,048.76 : 7,571.90 = 1,586 : x
  2. Step 2: Convert to fraction form
    5,048.76/7,571.90 = 1,586/x
  3. Step 3: Cross multiply
    5,048.76x = 7,571.90 × 1,586
  4. Step 4: Simplify right side
    5,048.76x = 12,009,033.40
  5. Step 5: Solve for x
    x = 12,009,033.40/5,048.76
  6. Step 6: Final answer
    x = 2,378.61

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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.