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Finding the Fourth Proportional to 62,905.72, 86,810.10 and 34,613.16

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Solution

The fourth proportional to 62,905.72, 86,810.10 and 34,613.16 is: 47,766.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,905.72 : 86,810.10 = 34,613.16 : x
  2. Step 2: Convert to fraction form
    62,905.72/86,810.10 = 34,613.16/x
  3. Step 3: Cross multiply
    62,905.72x = 86,810.10 × 34,613.16
  4. Step 4: Simplify right side
    62,905.72x = 3,004,771,880.92
  5. Step 5: Solve for x
    x = 3,004,771,880.92/62,905.72
  6. Step 6: Final answer
    x = 47,766.27

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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.