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Finding the Fourth Proportional to 9,761.79, 14,610.29 and 7,800.51

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Solution

The fourth proportional to 9,761.79, 14,610.29 and 7,800.51 is: 11,674.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,761.79 : 14,610.29 = 7,800.51 : x
  2. Step 2: Convert to fraction form
    9,761.79/14,610.29 = 7,800.51/x
  3. Step 3: Cross multiply
    9,761.79x = 14,610.29 × 7,800.51
  4. Step 4: Simplify right side
    9,761.79x = 113,967,674.25
  5. Step 5: Solve for x
    x = 113,967,674.25/9,761.79
  6. Step 6: Final answer
    x = 11,674.87

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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.