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Finding the Fourth Proportional to 17,719,172.40, 26,578,758.60 and 17,551,210.80

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Solution

The fourth proportional to 17,719,172.40, 26,578,758.60 and 17,551,210.80 is: 26,326,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,719,172.40 : 26,578,758.60 = 17,551,210.80 : x
  2. Step 2: Convert to fraction form
    17,719,172.40/26,578,758.60 = 17,551,210.80/x
  3. Step 3: Cross multiply
    17,719,172.40x = 26,578,758.60 × 17,551,210.80
  4. Step 4: Simplify right side
    17,719,172.40x = 466,489,394,990,912.94
  5. Step 5: Solve for x
    x = 466,489,394,990,912.94/17,719,172.40
  6. Step 6: Final answer
    x = 26,326,816.20

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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.