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Finding the Fourth Proportional to 70,262.93, 105,393.38 and 17,672.06

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Solution

The fourth proportional to 70,262.93, 105,393.38 and 17,672.06 is: 26,507.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,262.93 : 105,393.38 = 17,672.06 : x
  2. Step 2: Convert to fraction form
    70,262.93/105,393.38 = 17,672.06/x
  3. Step 3: Cross multiply
    70,262.93x = 105,393.38 × 17,672.06
  4. Step 4: Simplify right side
    70,262.93x = 1,862,517,519.64
  5. Step 5: Solve for x
    x = 1,862,517,519.64/70,262.93
  6. Step 6: Final answer
    x = 26,507.83

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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.