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Finding the Fourth Proportional to 4,941.76, 7,369.76 and 4,216

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Solution

The fourth proportional to 4,941.76, 7,369.76 and 4,216 is: 6,287.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,941.76 : 7,369.76 = 4,216 : x
  2. Step 2: Convert to fraction form
    4,941.76/7,369.76 = 4,216/x
  3. Step 3: Cross multiply
    4,941.76x = 7,369.76 × 4,216
  4. Step 4: Simplify right side
    4,941.76x = 31,070,908.16
  5. Step 5: Solve for x
    x = 31,070,908.16/4,941.76
  6. Step 6: Final answer
    x = 6,287.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.