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Finding the Fourth Proportional to 19,392.57, 26,761.01 and 11,851.52

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Solution

The fourth proportional to 19,392.57, 26,761.01 and 11,851.52 is: 16,354.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392.57 : 26,761.01 = 11,851.52 : x
  2. Step 2: Convert to fraction form
    19,392.57/26,761.01 = 11,851.52/x
  3. Step 3: Cross multiply
    19,392.57x = 26,761.01 × 11,851.52
  4. Step 4: Simplify right side
    19,392.57x = 317,158,452.17
  5. Step 5: Solve for x
    x = 317,158,452.17/19,392.57
  6. Step 6: Final answer
    x = 16,354.64

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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.