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Finding the Fourth Proportional to 5,578,385.35, 8,367,578.03 and 5,578,385.35

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Solution

The fourth proportional to 5,578,385.35, 8,367,578.03 and 5,578,385.35 is: 8,367,578.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578,385.35 : 8,367,578.03 = 5,578,385.35 : x
  2. Step 2: Convert to fraction form
    5,578,385.35/8,367,578.03 = 5,578,385.35/x
  3. Step 3: Cross multiply
    5,578,385.35x = 8,367,578.03 × 5,578,385.35
  4. Step 4: Simplify right side
    5,578,385.35x = 46,677,574,669,641.93
  5. Step 5: Solve for x
    x = 46,677,574,669,641.93/5,578,385.35
  6. Step 6: Final answer
    x = 8,367,578.03

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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.