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Finding the Fourth Proportional to 5,557, 7,668.66 and 3,073

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Solution

The fourth proportional to 5,557, 7,668.66 and 3,073 is: 4,240.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,557 : 7,668.66 = 3,073 : x
  2. Step 2: Convert to fraction form
    5,557/7,668.66 = 3,073/x
  3. Step 3: Cross multiply
    5,557x = 7,668.66 × 3,073
  4. Step 4: Simplify right side
    5,557x = 23,565,792.18
  5. Step 5: Solve for x
    x = 23,565,792.18/5,557
  6. Step 6: Final answer
    x = 4,240.74

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Why These Related Problems?

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