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Finding the Fourth Proportional to 67,276.50, 92,841.60 and 38,998.60

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Solution

The fourth proportional to 67,276.50, 92,841.60 and 38,998.60 is: 53,818.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,276.50 : 92,841.60 = 38,998.60 : x
  2. Step 2: Convert to fraction form
    67,276.50/92,841.60 = 38,998.60/x
  3. Step 3: Cross multiply
    67,276.50x = 92,841.60 × 38,998.60
  4. Step 4: Simplify right side
    67,276.50x = 3,620,692,421.76
  5. Step 5: Solve for x
    x = 3,620,692,421.76/67,276.50
  6. Step 6: Final answer
    x = 53,818.09

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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.