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Finding the Fourth Proportional to 7,438.72, 10,269.48 and 4,606.60

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Solution

The fourth proportional to 7,438.72, 10,269.48 and 4,606.60 is: 6,359.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.72 : 10,269.48 = 4,606.60 : x
  2. Step 2: Convert to fraction form
    7,438.72/10,269.48 = 4,606.60/x
  3. Step 3: Cross multiply
    7,438.72x = 10,269.48 × 4,606.60
  4. Step 4: Simplify right side
    7,438.72x = 47,307,386.57
  5. Step 5: Solve for x
    x = 47,307,386.57/7,438.72
  6. Step 6: Final answer
    x = 6,359.61

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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.