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Finding the Fourth Proportional to 19,202.89, 26,504.99 and 12,506.89

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Solution

The fourth proportional to 19,202.89, 26,504.99 and 12,506.89 is: 17,262.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,202.89 : 26,504.99 = 12,506.89 : x
  2. Step 2: Convert to fraction form
    19,202.89/26,504.99 = 12,506.89/x
  3. Step 3: Cross multiply
    19,202.89x = 26,504.99 × 12,506.89
  4. Step 4: Simplify right side
    19,202.89x = 331,494,994.38
  5. Step 5: Solve for x
    x = 331,494,994.38/19,202.89
  6. Step 6: Final answer
    x = 17,262.77

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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.