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Finding the Fourth Proportional to 5,587.76, 7,711.36 and 3,350

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Solution

The fourth proportional to 5,587.76, 7,711.36 and 3,350 is: 4,623.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.76 : 7,711.36 = 3,350 : x
  2. Step 2: Convert to fraction form
    5,587.76/7,711.36 = 3,350/x
  3. Step 3: Cross multiply
    5,587.76x = 7,711.36 × 3,350
  4. Step 4: Simplify right side
    5,587.76x = 25,833,056
  5. Step 5: Solve for x
    x = 25,833,056/5,587.76
  6. Step 6: Final answer
    x = 4,623.15

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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.