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Finding the Fourth Proportional to 9,981.66, 13,774.40 and 5,505.41

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Solution

The fourth proportional to 9,981.66, 13,774.40 and 5,505.41 is: 7,597.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.66 : 13,774.40 = 5,505.41 : x
  2. Step 2: Convert to fraction form
    9,981.66/13,774.40 = 5,505.41/x
  3. Step 3: Cross multiply
    9,981.66x = 13,774.40 × 5,505.41
  4. Step 4: Simplify right side
    9,981.66x = 75,833,623.10
  5. Step 5: Solve for x
    x = 75,833,623.10/9,981.66
  6. Step 6: Final answer
    x = 7,597.30

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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.