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Finding the Fourth Proportional to 9,005.36, 12,428.10 and 5,027.07

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Solution

The fourth proportional to 9,005.36, 12,428.10 and 5,027.07 is: 6,937.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,005.36 : 12,428.10 = 5,027.07 : x
  2. Step 2: Convert to fraction form
    9,005.36/12,428.10 = 5,027.07/x
  3. Step 3: Cross multiply
    9,005.36x = 12,428.10 × 5,027.07
  4. Step 4: Simplify right side
    9,005.36x = 62,476,928.67
  5. Step 5: Solve for x
    x = 62,476,928.67/9,005.36
  6. Step 6: Final answer
    x = 6,937.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.