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Finding the Fourth Proportional to 15,978,276.60, 23,967,414.90 and 11,089,019.40

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Solution

The fourth proportional to 15,978,276.60, 23,967,414.90 and 11,089,019.40 is: 16,633,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,978,276.60 : 23,967,414.90 = 11,089,019.40 : x
  2. Step 2: Convert to fraction form
    15,978,276.60/23,967,414.90 = 11,089,019.40/x
  3. Step 3: Cross multiply
    15,978,276.60x = 23,967,414.90 × 11,089,019.40
  4. Step 4: Simplify right side
    15,978,276.60x = 265,775,128,793,949.06
  5. Step 5: Solve for x
    x = 265,775,128,793,949.06/15,978,276.60
  6. Step 6: Final answer
    x = 16,633,529.10

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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.