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Finding the Fourth Proportional to 5,165.84, 7,746.33 and 1,876.61

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Solution

The fourth proportional to 5,165.84, 7,746.33 and 1,876.61 is: 2,814.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.84 : 7,746.33 = 1,876.61 : x
  2. Step 2: Convert to fraction form
    5,165.84/7,746.33 = 1,876.61/x
  3. Step 3: Cross multiply
    5,165.84x = 7,746.33 × 1,876.61
  4. Step 4: Simplify right side
    5,165.84x = 14,536,840.34
  5. Step 5: Solve for x
    x = 14,536,840.34/5,165.84
  6. Step 6: Final answer
    x = 2,814.03

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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.