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Finding the Fourth Proportional to 70,007.10, 96,609.96 and 39,792.62

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Solution

The fourth proportional to 70,007.10, 96,609.96 and 39,792.62 is: 54,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,007.10 : 96,609.96 = 39,792.62 : x
  2. Step 2: Convert to fraction form
    70,007.10/96,609.96 = 39,792.62/x
  3. Step 3: Cross multiply
    70,007.10x = 96,609.96 × 39,792.62
  4. Step 4: Simplify right side
    70,007.10x = 3,844,362,943.45
  5. Step 5: Solve for x
    x = 3,844,362,943.45/70,007.10
  6. Step 6: Final answer
    x = 54,913.90

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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.