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Finding the Fourth Proportional to 11,554.59, 17,318.43 and 5,315.25

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Solution

The fourth proportional to 11,554.59, 17,318.43 and 5,315.25 is: 7,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,554.59 : 17,318.43 = 5,315.25 : x
  2. Step 2: Convert to fraction form
    11,554.59/17,318.43 = 5,315.25/x
  3. Step 3: Cross multiply
    11,554.59x = 17,318.43 × 5,315.25
  4. Step 4: Simplify right side
    11,554.59x = 92,051,785.06
  5. Step 5: Solve for x
    x = 92,051,785.06/11,554.59
  6. Step 6: Final answer
    x = 7,966.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.