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Finding the Fourth Proportional to 7,415,708.70, 11,123,563.05 and 7,415,708.70

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Solution

The fourth proportional to 7,415,708.70, 11,123,563.05 and 7,415,708.70 is: 11,123,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415,708.70 : 11,123,563.05 = 7,415,708.70 : x
  2. Step 2: Convert to fraction form
    7,415,708.70/11,123,563.05 = 7,415,708.70/x
  3. Step 3: Cross multiply
    7,415,708.70x = 11,123,563.05 × 7,415,708.70
  4. Step 4: Simplify right side
    7,415,708.70x = 82,489,103,284,883.55
  5. Step 5: Solve for x
    x = 82,489,103,284,883.55/7,415,708.70
  6. Step 6: Final answer
    x = 11,123,563.05

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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.