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Finding the Fourth Proportional to 69,803.40, 104,705.10 and 41,809.80

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Solution

The fourth proportional to 69,803.40, 104,705.10 and 41,809.80 is: 62,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,803.40 : 104,705.10 = 41,809.80 : x
  2. Step 2: Convert to fraction form
    69,803.40/104,705.10 = 41,809.80/x
  3. Step 3: Cross multiply
    69,803.40x = 104,705.10 × 41,809.80
  4. Step 4: Simplify right side
    69,803.40x = 4,377,699,289.98
  5. Step 5: Solve for x
    x = 4,377,699,289.98/69,803.40
  6. Step 6: Final answer
    x = 62,714.70

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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.