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Finding the Fourth Proportional to 57,383.60, 86,072.06 and 25,785.50

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Solution

The fourth proportional to 57,383.60, 86,072.06 and 25,785.50 is: 38,676.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,383.60 : 86,072.06 = 25,785.50 : x
  2. Step 2: Convert to fraction form
    57,383.60/86,072.06 = 25,785.50/x
  3. Step 3: Cross multiply
    57,383.60x = 86,072.06 × 25,785.50
  4. Step 4: Simplify right side
    57,383.60x = 2,219,411,103.13
  5. Step 5: Solve for x
    x = 2,219,411,103.13/57,383.60
  6. Step 6: Final answer
    x = 38,676.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.