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Finding the Fourth Proportional to 19,506.76, 26,919.72 and 11,546.08

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Solution

The fourth proportional to 19,506.76, 26,919.72 and 11,546.08 is: 15,933.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,506.76 : 26,919.72 = 11,546.08 : x
  2. Step 2: Convert to fraction form
    19,506.76/26,919.72 = 11,546.08/x
  3. Step 3: Cross multiply
    19,506.76x = 26,919.72 × 11,546.08
  4. Step 4: Simplify right side
    19,506.76x = 310,817,240.70
  5. Step 5: Solve for x
    x = 310,817,240.70/19,506.76
  6. Step 6: Final answer
    x = 15,933.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.