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Finding the Fourth Proportional to 67,139.79, 92,654.39 and 36,926.64

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Solution

The fourth proportional to 67,139.79, 92,654.39 and 36,926.64 is: 50,959.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,139.79 : 92,654.39 = 36,926.64 : x
  2. Step 2: Convert to fraction form
    67,139.79/92,654.39 = 36,926.64/x
  3. Step 3: Cross multiply
    67,139.79x = 92,654.39 × 36,926.64
  4. Step 4: Simplify right side
    67,139.79x = 3,421,415,396.50
  5. Step 5: Solve for x
    x = 3,421,415,396.50/67,139.79
  6. Step 6: Final answer
    x = 50,959.58

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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.