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Finding the Fourth Proportional to 22,390,840.80, 33,536,494.80 and 19,404,856.80

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Solution

The fourth proportional to 22,390,840.80, 33,536,494.80 and 19,404,856.80 is: 29,064,155.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,390,840.80 : 33,536,494.80 = 19,404,856.80 : x
  2. Step 2: Convert to fraction form
    22,390,840.80/33,536,494.80 = 19,404,856.80/x
  3. Step 3: Cross multiply
    22,390,840.80x = 33,536,494.80 × 19,404,856.80
  4. Step 4: Simplify right side
    22,390,840.80x = 650,770,879,167,944.62
  5. Step 5: Solve for x
    x = 650,770,879,167,944.62/22,390,840.80
  6. Step 6: Final answer
    x = 29,064,155.52

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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.