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Finding the Fourth Proportional to 9,292, 13,940.16 and 3,136

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Solution

The fourth proportional to 9,292, 13,940.16 and 3,136 is: 4,704.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,292 : 13,940.16 = 3,136 : x
  2. Step 2: Convert to fraction form
    9,292/13,940.16 = 3,136/x
  3. Step 3: Cross multiply
    9,292x = 13,940.16 × 3,136
  4. Step 4: Simplify right side
    9,292x = 43,716,341.76
  5. Step 5: Solve for x
    x = 43,716,341.76/9,292
  6. Step 6: Final answer
    x = 4,704.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.