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Finding the Fourth Proportional to 19,370.68, 26,743.98 and 11,923

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Solution

The fourth proportional to 19,370.68, 26,743.98 and 11,923 is: 16,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,370.68 : 26,743.98 = 11,923 : x
  2. Step 2: Convert to fraction form
    19,370.68/26,743.98 = 11,923/x
  3. Step 3: Cross multiply
    19,370.68x = 26,743.98 × 11,923
  4. Step 4: Simplify right side
    19,370.68x = 318,868,473.54
  5. Step 5: Solve for x
    x = 318,868,473.54/19,370.68
  6. Step 6: Final answer
    x = 16,461.40

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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.