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Finding the Fourth Proportional to 6,361,909.70, 8,887,777.90 and 6,361,909.70

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Solution

The fourth proportional to 6,361,909.70, 8,887,777.90 and 6,361,909.70 is: 8,887,777.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361,909.70 : 8,887,777.90 = 6,361,909.70 : x
  2. Step 2: Convert to fraction form
    6,361,909.70/8,887,777.90 = 6,361,909.70/x
  3. Step 3: Cross multiply
    6,361,909.70x = 8,887,777.90 × 6,361,909.70
  4. Step 4: Simplify right side
    6,361,909.70x = 56,543,240,433,455.63
  5. Step 5: Solve for x
    x = 56,543,240,433,455.63/6,361,909.70
  6. Step 6: Final answer
    x = 8,887,777.90

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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.