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Finding the Fourth Proportional to 35,959,620.40, 53,939,430.60 and 20,852,407.60

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Solution

The fourth proportional to 35,959,620.40, 53,939,430.60 and 20,852,407.60 is: 31,278,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,959,620.40 : 53,939,430.60 = 20,852,407.60 : x
  2. Step 2: Convert to fraction form
    35,959,620.40/53,939,430.60 = 20,852,407.60/x
  3. Step 3: Cross multiply
    35,959,620.40x = 53,939,430.60 × 20,852,407.60
  4. Step 4: Simplify right side
    35,959,620.40x = 1,124,766,992,583,112.62
  5. Step 5: Solve for x
    x = 1,124,766,992,583,112.62/35,959,620.40
  6. Step 6: Final answer
    x = 31,278,611.40

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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.