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Finding the Fourth Proportional to 47,674.70, 66,657.10 and 47,674.70

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Solution

The fourth proportional to 47,674.70, 66,657.10 and 47,674.70 is: 66,657.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,674.70 : 66,657.10 = 47,674.70 : x
  2. Step 2: Convert to fraction form
    47,674.70/66,657.10 = 47,674.70/x
  3. Step 3: Cross multiply
    47,674.70x = 66,657.10 × 47,674.70
  4. Step 4: Simplify right side
    47,674.70x = 3,177,857,245.37
  5. Step 5: Solve for x
    x = 3,177,857,245.37/47,674.70
  6. Step 6: Final answer
    x = 66,657.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.