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Finding the Fourth Proportional to 70,613.06, 105,923.23 and 18,023.00

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Solution

The fourth proportional to 70,613.06, 105,923.23 and 18,023.00 is: 27,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,613.06 : 105,923.23 = 18,023.00 : x
  2. Step 2: Convert to fraction form
    70,613.06/105,923.23 = 18,023.00/x
  3. Step 3: Cross multiply
    70,613.06x = 105,923.23 × 18,023.00
  4. Step 4: Simplify right side
    70,613.06x = 1,909,053,799.62
  5. Step 5: Solve for x
    x = 1,909,053,799.62/70,613.06
  6. Step 6: Final answer
    x = 27,035.42

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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.