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Finding the Fourth Proportional to 9,386.56, 14,067.40 and 4,994.56

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Solution

The fourth proportional to 9,386.56, 14,067.40 and 4,994.56 is: 7,485.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,386.56 : 14,067.40 = 4,994.56 : x
  2. Step 2: Convert to fraction form
    9,386.56/14,067.40 = 4,994.56/x
  3. Step 3: Cross multiply
    9,386.56x = 14,067.40 × 4,994.56
  4. Step 4: Simplify right side
    9,386.56x = 70,260,473.34
  5. Step 5: Solve for x
    x = 70,260,473.34/9,386.56
  6. Step 6: Final answer
    x = 7,485.22

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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.