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Finding the Fourth Proportional to 11,325.30, 16,994.86 and 7,159.57

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Solution

The fourth proportional to 11,325.30, 16,994.86 and 7,159.57 is: 10,743.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.30 : 16,994.86 = 7,159.57 : x
  2. Step 2: Convert to fraction form
    11,325.30/16,994.86 = 7,159.57/x
  3. Step 3: Cross multiply
    11,325.30x = 16,994.86 × 7,159.57
  4. Step 4: Simplify right side
    11,325.30x = 121,675,889.81
  5. Step 5: Solve for x
    x = 121,675,889.81/11,325.30
  6. Step 6: Final answer
    x = 10,743.72

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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.