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Finding the Fourth Proportional to 27,318,700.80, 40,978,051.20 and 25,751,059.20

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Solution

The fourth proportional to 27,318,700.80, 40,978,051.20 and 25,751,059.20 is: 38,626,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,318,700.80 : 40,978,051.20 = 25,751,059.20 : x
  2. Step 2: Convert to fraction form
    27,318,700.80/40,978,051.20 = 25,751,059.20/x
  3. Step 3: Cross multiply
    27,318,700.80x = 40,978,051.20 × 25,751,059.20
  4. Step 4: Simplify right side
    27,318,700.80x = 1,055,228,222,351,831.12
  5. Step 5: Solve for x
    x = 1,055,228,222,351,831.12/27,318,700.80
  6. Step 6: Final answer
    x = 38,626,588.80

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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.