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Finding the Fourth Proportional to 19,202.76, 26,504.82 and 12,506.76

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Solution

The fourth proportional to 19,202.76, 26,504.82 and 12,506.76 is: 17,262.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,202.76 : 26,504.82 = 12,506.76 : x
  2. Step 2: Convert to fraction form
    19,202.76/26,504.82 = 12,506.76/x
  3. Step 3: Cross multiply
    19,202.76x = 26,504.82 × 12,506.76
  4. Step 4: Simplify right side
    19,202.76x = 331,489,422.58
  5. Step 5: Solve for x
    x = 331,489,422.58/19,202.76
  6. Step 6: Final answer
    x = 17,262.59

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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.