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Finding the Fourth Proportional to 18,997,659, 28,496,488.50 and 8,360,091

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Solution

The fourth proportional to 18,997,659, 28,496,488.50 and 8,360,091 is: 12,540,136.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997,659 : 28,496,488.50 = 8,360,091 : x
  2. Step 2: Convert to fraction form
    18,997,659/28,496,488.50 = 8,360,091/x
  3. Step 3: Cross multiply
    18,997,659x = 28,496,488.50 × 8,360,091
  4. Step 4: Simplify right side
    18,997,659x = 238,233,237,040,453.50
  5. Step 5: Solve for x
    x = 238,233,237,040,453.50/18,997,659
  6. Step 6: Final answer
    x = 12,540,136.50

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1.5x scale

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.