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Finding the Fourth Proportional to 17,798,921.80, 26,698,382.70 and 17,798,921.80

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Solution

The fourth proportional to 17,798,921.80, 26,698,382.70 and 17,798,921.80 is: 26,698,382.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,798,921.80 : 26,698,382.70 = 17,798,921.80 : x
  2. Step 2: Convert to fraction form
    17,798,921.80/26,698,382.70 = 17,798,921.80/x
  3. Step 3: Cross multiply
    17,798,921.80x = 26,698,382.70 × 17,798,921.80
  4. Step 4: Simplify right side
    17,798,921.80x = 475,202,425,863,772.88
  5. Step 5: Solve for x
    x = 475,202,425,863,772.88/17,798,921.80
  6. Step 6: Final answer
    x = 26,698,382.70

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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.