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Finding the Fourth Proportional to 45,139.44, 67,690.44 and 17,054.64

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Solution

The fourth proportional to 45,139.44, 67,690.44 and 17,054.64 is: 25,574.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,139.44 : 67,690.44 = 17,054.64 : x
  2. Step 2: Convert to fraction form
    45,139.44/67,690.44 = 17,054.64/x
  3. Step 3: Cross multiply
    45,139.44x = 67,690.44 × 17,054.64
  4. Step 4: Simplify right side
    45,139.44x = 1,154,436,085.64
  5. Step 5: Solve for x
    x = 1,154,436,085.64/45,139.44
  6. Step 6: Final answer
    x = 25,574.89

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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.