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Finding the Fourth Proportional to 67,280.40, 100,920.60 and 62,906.40

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Solution

The fourth proportional to 67,280.40, 100,920.60 and 62,906.40 is: 94,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,280.40 : 100,920.60 = 62,906.40 : x
  2. Step 2: Convert to fraction form
    67,280.40/100,920.60 = 62,906.40/x
  3. Step 3: Cross multiply
    67,280.40x = 100,920.60 × 62,906.40
  4. Step 4: Simplify right side
    67,280.40x = 6,348,551,631.84
  5. Step 5: Solve for x
    x = 6,348,551,631.84/67,280.40
  6. Step 6: Final answer
    x = 94,359.60

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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.