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Finding the Fourth Proportional to 25,884.60, 35,732.78 and 19,513.78

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Solution

The fourth proportional to 25,884.60, 35,732.78 and 19,513.78 is: 26,938.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,884.60 : 35,732.78 = 19,513.78 : x
  2. Step 2: Convert to fraction form
    25,884.60/35,732.78 = 19,513.78/x
  3. Step 3: Cross multiply
    25,884.60x = 35,732.78 × 19,513.78
  4. Step 4: Simplify right side
    25,884.60x = 697,281,493.98
  5. Step 5: Solve for x
    x = 697,281,493.98/25,884.60
  6. Step 6: Final answer
    x = 26,938.09

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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.