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Finding the Fourth Proportional to 73,394.31, 110,091.48 and 17,990.31

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Solution

The fourth proportional to 73,394.31, 110,091.48 and 17,990.31 is: 26,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,394.31 : 110,091.48 = 17,990.31 : x
  2. Step 2: Convert to fraction form
    73,394.31/110,091.48 = 17,990.31/x
  3. Step 3: Cross multiply
    73,394.31x = 110,091.48 × 17,990.31
  4. Step 4: Simplify right side
    73,394.31x = 1,980,579,853.56
  5. Step 5: Solve for x
    x = 1,980,579,853.56/73,394.31
  6. Step 6: Final answer
    x = 26,985.47

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1.5x scale

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.