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Finding the Fourth Proportional to 70,035.09, 105,053.51 and 23,287.96

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Solution

The fourth proportional to 70,035.09, 105,053.51 and 23,287.96 is: 34,932.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,035.09 : 105,053.51 = 23,287.96 : x
  2. Step 2: Convert to fraction form
    70,035.09/105,053.51 = 23,287.96/x
  3. Step 3: Cross multiply
    70,035.09x = 105,053.51 × 23,287.96
  4. Step 4: Simplify right side
    70,035.09x = 2,446,481,938.74
  5. Step 5: Solve for x
    x = 2,446,481,938.74/70,035.09
  6. Step 6: Final answer
    x = 34,932.23

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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.