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Finding the Fourth Proportional to 61,187.10, 84,524.22 and 47,219.46

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Solution

The fourth proportional to 61,187.10, 84,524.22 and 47,219.46 is: 65,229.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,187.10 : 84,524.22 = 47,219.46 : x
  2. Step 2: Convert to fraction form
    61,187.10/84,524.22 = 47,219.46/x
  3. Step 3: Cross multiply
    61,187.10x = 84,524.22 × 47,219.46
  4. Step 4: Simplify right side
    61,187.10x = 3,991,188,025.32
  5. Step 5: Solve for x
    x = 3,991,188,025.32/61,187.10
  6. Step 6: Final answer
    x = 65,229.24

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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.