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Finding the Fourth Proportional to 8,766,900.80, 13,152,808.80 and 4,279,323.20

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Solution

The fourth proportional to 8,766,900.80, 13,152,808.80 and 4,279,323.20 is: 6,420,184.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766,900.80 : 13,152,808.80 = 4,279,323.20 : x
  2. Step 2: Convert to fraction form
    8,766,900.80/13,152,808.80 = 4,279,323.20/x
  3. Step 3: Cross multiply
    8,766,900.80x = 13,152,808.80 × 4,279,323.20
  4. Step 4: Simplify right side
    8,766,900.80x = 56,285,119,843,004.16
  5. Step 5: Solve for x
    x = 56,285,119,843,004.16/8,766,900.80
  6. Step 6: Final answer
    x = 6,420,184.41

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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.