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Finding the Fourth Proportional to 4,737, 7,108.76 and 1,659

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Solution

The fourth proportional to 4,737, 7,108.76 and 1,659 is: 2,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,737 : 7,108.76 = 1,659 : x
  2. Step 2: Convert to fraction form
    4,737/7,108.76 = 1,659/x
  3. Step 3: Cross multiply
    4,737x = 7,108.76 × 1,659
  4. Step 4: Simplify right side
    4,737x = 11,793,432.84
  5. Step 5: Solve for x
    x = 11,793,432.84/4,737
  6. Step 6: Final answer
    x = 2,489.64

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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.