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Finding the Fourth Proportional to 6,591.66, 9,881.55 and 2,428.80

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Solution

The fourth proportional to 6,591.66, 9,881.55 and 2,428.80 is: 3,641.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,591.66 : 9,881.55 = 2,428.80 : x
  2. Step 2: Convert to fraction form
    6,591.66/9,881.55 = 2,428.80/x
  3. Step 3: Cross multiply
    6,591.66x = 9,881.55 × 2,428.80
  4. Step 4: Simplify right side
    6,591.66x = 24,000,308.64
  5. Step 5: Solve for x
    x = 24,000,308.64/6,591.66
  6. Step 6: Final answer
    x = 3,641.01

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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.