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Finding the Fourth Proportional to 18,764,576.75, 25,894,940.95 and 10,615,814.75

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Solution

The fourth proportional to 18,764,576.75, 25,894,940.95 and 10,615,814.75 is: 14,649,725.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764,576.75 : 25,894,940.95 = 10,615,814.75 : x
  2. Step 2: Convert to fraction form
    18,764,576.75/25,894,940.95 = 10,615,814.75/x
  3. Step 3: Cross multiply
    18,764,576.75x = 25,894,940.95 × 10,615,814.75
  4. Step 4: Simplify right side
    18,764,576.75x = 274,895,896,087,389
  5. Step 5: Solve for x
    x = 274,895,896,087,389/18,764,576.75
  6. Step 6: Final answer
    x = 14,649,725.37

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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.