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Finding the Fourth Proportional to 22,773,978.80, 34,160,968.20 and 21,791,092.40

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Solution

The fourth proportional to 22,773,978.80, 34,160,968.20 and 21,791,092.40 is: 32,686,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,773,978.80 : 34,160,968.20 = 21,791,092.40 : x
  2. Step 2: Convert to fraction form
    22,773,978.80/34,160,968.20 = 21,791,092.40/x
  3. Step 3: Cross multiply
    22,773,978.80x = 34,160,968.20 × 21,791,092.40
  4. Step 4: Simplify right side
    22,773,978.80x = 744,404,814,519,661.75
  5. Step 5: Solve for x
    x = 744,404,814,519,661.75/22,773,978.80
  6. Step 6: Final answer
    x = 32,686,638.60

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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.