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Finding the Fourth Proportional to 12,877,245.80, 18,054,686.20 and 12,877,245.80

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Solution

The fourth proportional to 12,877,245.80, 18,054,686.20 and 12,877,245.80 is: 18,054,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877,245.80 : 18,054,686.20 = 12,877,245.80 : x
  2. Step 2: Convert to fraction form
    12,877,245.80/18,054,686.20 = 12,877,245.80/x
  3. Step 3: Cross multiply
    12,877,245.80x = 18,054,686.20 × 12,877,245.80
  4. Step 4: Simplify right side
    12,877,245.80x = 232,494,632,039,267.97
  5. Step 5: Solve for x
    x = 232,494,632,039,267.97/12,877,245.80
  6. Step 6: Final answer
    x = 18,054,686.20

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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.