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Finding the Fourth Proportional to 67,341.87, 92,942.75 and 40,511.50

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Solution

The fourth proportional to 67,341.87, 92,942.75 and 40,511.50 is: 55,912.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,341.87 : 92,942.75 = 40,511.50 : x
  2. Step 2: Convert to fraction form
    67,341.87/92,942.75 = 40,511.50/x
  3. Step 3: Cross multiply
    67,341.87x = 92,942.75 × 40,511.50
  4. Step 4: Simplify right side
    67,341.87x = 3,765,249,781.71
  5. Step 5: Solve for x
    x = 3,765,249,781.71/67,341.87
  6. Step 6: Final answer
    x = 55,912.46

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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.