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Finding the Fourth Proportional to 22,759,317.60, 34,138,976.40 and 20,686,697.70

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Solution

The fourth proportional to 22,759,317.60, 34,138,976.40 and 20,686,697.70 is: 31,030,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,759,317.60 : 34,138,976.40 = 20,686,697.70 : x
  2. Step 2: Convert to fraction form
    22,759,317.60/34,138,976.40 = 20,686,697.70/x
  3. Step 3: Cross multiply
    22,759,317.60x = 34,138,976.40 × 20,686,697.70
  4. Step 4: Simplify right side
    22,759,317.60x = 706,222,684,574,234.25
  5. Step 5: Solve for x
    x = 706,222,684,574,234.25/22,759,317.60
  6. Step 6: Final answer
    x = 31,030,046.55

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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.