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Finding the Fourth Proportional to 9,854.79, 13,599.79 and 5,378.58

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Solution

The fourth proportional to 9,854.79, 13,599.79 and 5,378.58 is: 7,422.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,854.79 : 13,599.79 = 5,378.58 : x
  2. Step 2: Convert to fraction form
    9,854.79/13,599.79 = 5,378.58/x
  3. Step 3: Cross multiply
    9,854.79x = 13,599.79 × 5,378.58
  4. Step 4: Simplify right side
    9,854.79x = 73,147,558.50
  5. Step 5: Solve for x
    x = 73,147,558.50/9,854.79
  6. Step 6: Final answer
    x = 7,422.54

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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.