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Finding the Fourth Proportional to 26,907,805.60, 40,361,708.40 and 18,829,902.40

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Solution

The fourth proportional to 26,907,805.60, 40,361,708.40 and 18,829,902.40 is: 28,244,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,907,805.60 : 40,361,708.40 = 18,829,902.40 : x
  2. Step 2: Convert to fraction form
    26,907,805.60/40,361,708.40 = 18,829,902.40/x
  3. Step 3: Cross multiply
    26,907,805.60x = 40,361,708.40 × 18,829,902.40
  4. Step 4: Simplify right side
    26,907,805.60x = 760,007,029,869,260.12
  5. Step 5: Solve for x
    x = 760,007,029,869,260.12/26,907,805.60
  6. Step 6: Final answer
    x = 28,244,853.60

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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.