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Finding the Fourth Proportional to 7,740.88, 11,607.48 and 2,546

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Solution

The fourth proportional to 7,740.88, 11,607.48 and 2,546 is: 3,817.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.88 : 11,607.48 = 2,546 : x
  2. Step 2: Convert to fraction form
    7,740.88/11,607.48 = 2,546/x
  3. Step 3: Cross multiply
    7,740.88x = 11,607.48 × 2,546
  4. Step 4: Simplify right side
    7,740.88x = 29,552,644.08
  5. Step 5: Solve for x
    x = 29,552,644.08/7,740.88
  6. Step 6: Final answer
    x = 3,817.74

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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.