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Finding the Fourth Proportional to 5,285,791.70, 7,415,038.30 and 5,285,791.70

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Solution

The fourth proportional to 5,285,791.70, 7,415,038.30 and 5,285,791.70 is: 7,415,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285,791.70 : 7,415,038.30 = 5,285,791.70 : x
  2. Step 2: Convert to fraction form
    5,285,791.70/7,415,038.30 = 5,285,791.70/x
  3. Step 3: Cross multiply
    5,285,791.70x = 7,415,038.30 × 5,285,791.70
  4. Step 4: Simplify right side
    5,285,791.70x = 39,194,347,901,322.11
  5. Step 5: Solve for x
    x = 39,194,347,901,322.11/5,285,791.70
  6. Step 6: Final answer
    x = 7,415,038.30

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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.