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Finding the Fourth Proportional to 92,530, 138,784.68 and 25,972.72

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Solution

The fourth proportional to 92,530, 138,784.68 and 25,972.72 is: 38,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,530 : 138,784.68 = 25,972.72 : x
  2. Step 2: Convert to fraction form
    92,530/138,784.68 = 25,972.72/x
  3. Step 3: Cross multiply
    92,530x = 138,784.68 × 25,972.72
  4. Step 4: Simplify right side
    92,530x = 3,604,615,633.93
  5. Step 5: Solve for x
    x = 3,604,615,633.93/92,530
  6. Step 6: Final answer
    x = 38,956.18

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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.