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Finding the Fourth Proportional to 9,807.67, 14,709.99 and 2,788.01

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Solution

The fourth proportional to 9,807.67, 14,709.99 and 2,788.01 is: 4,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,807.67 : 14,709.99 = 2,788.01 : x
  2. Step 2: Convert to fraction form
    9,807.67/14,709.99 = 2,788.01/x
  3. Step 3: Cross multiply
    9,807.67x = 14,709.99 × 2,788.01
  4. Step 4: Simplify right side
    9,807.67x = 41,011,599.22
  5. Step 5: Solve for x
    x = 41,011,599.22/9,807.67
  6. Step 6: Final answer
    x = 4,181.58

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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.