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Finding the Fourth Proportional to 86,817.97, 119,824.15 and 51,007.97

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Solution

The fourth proportional to 86,817.97, 119,824.15 and 51,007.97 is: 70,400.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,817.97 : 119,824.15 = 51,007.97 : x
  2. Step 2: Convert to fraction form
    86,817.97/119,824.15 = 51,007.97/x
  3. Step 3: Cross multiply
    86,817.97x = 119,824.15 × 51,007.97
  4. Step 4: Simplify right side
    86,817.97x = 6,111,986,648.48
  5. Step 5: Solve for x
    x = 6,111,986,648.48/86,817.97
  6. Step 6: Final answer
    x = 70,400.02

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1.5x scale

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.