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Finding the Fourth Proportional to 40,869, 60,945.86 and 40,495.32

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Solution

The fourth proportional to 40,869, 60,945.86 and 40,495.32 is: 60,388.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,869 : 60,945.86 = 40,495.32 : x
  2. Step 2: Convert to fraction form
    40,869/60,945.86 = 40,495.32/x
  3. Step 3: Cross multiply
    40,869x = 60,945.86 × 40,495.32
  4. Step 4: Simplify right side
    40,869x = 2,468,022,204.61
  5. Step 5: Solve for x
    x = 2,468,022,204.61/40,869
  6. Step 6: Final answer
    x = 60,388.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.