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Finding the Fourth Proportional to 22,265,985.70, 33,398,978.55 and 13,308,033.70

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Solution

The fourth proportional to 22,265,985.70, 33,398,978.55 and 13,308,033.70 is: 19,962,050.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,265,985.70 : 33,398,978.55 = 13,308,033.70 : x
  2. Step 2: Convert to fraction form
    22,265,985.70/33,398,978.55 = 13,308,033.70/x
  3. Step 3: Cross multiply
    22,265,985.70x = 33,398,978.55 × 13,308,033.70
  4. Step 4: Simplify right side
    22,265,985.70x = 444,474,732,088,977.12
  5. Step 5: Solve for x
    x = 444,474,732,088,977.12/22,265,985.70
  6. Step 6: Final answer
    x = 19,962,050.55

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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.