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Finding the Fourth Proportional to 14,861,568.70, 20,763,680.90 and 14,861,568.70

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Solution

The fourth proportional to 14,861,568.70, 20,763,680.90 and 14,861,568.70 is: 20,763,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,861,568.70 : 20,763,680.90 = 14,861,568.70 : x
  2. Step 2: Convert to fraction form
    14,861,568.70/20,763,680.90 = 14,861,568.70/x
  3. Step 3: Cross multiply
    14,861,568.70x = 20,763,680.90 × 14,861,568.70
  4. Step 4: Simplify right side
    14,861,568.70x = 308,580,870,160,227.81
  5. Step 5: Solve for x
    x = 308,580,870,160,227.81/14,861,568.70
  6. Step 6: Final answer
    x = 20,763,680.90

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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.