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Finding the Fourth Proportional to 74,930.96, 112,383.48 and 25,682.96

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Solution

The fourth proportional to 74,930.96, 112,383.48 and 25,682.96 is: 38,520.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,930.96 : 112,383.48 = 25,682.96 : x
  2. Step 2: Convert to fraction form
    74,930.96/112,383.48 = 25,682.96/x
  3. Step 3: Cross multiply
    74,930.96x = 112,383.48 × 25,682.96
  4. Step 4: Simplify right side
    74,930.96x = 2,886,340,421.50
  5. Step 5: Solve for x
    x = 2,886,340,421.50/74,930.96
  6. Step 6: Final answer
    x = 38,520.00

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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.