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Finding the Fourth Proportional to 11,839,812.40, 17,759,718.60 and 11,839,812.40

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Solution

The fourth proportional to 11,839,812.40, 17,759,718.60 and 11,839,812.40 is: 17,759,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,839,812.40 : 17,759,718.60 = 11,839,812.40 : x
  2. Step 2: Convert to fraction form
    11,839,812.40/17,759,718.60 = 11,839,812.40/x
  3. Step 3: Cross multiply
    11,839,812.40x = 17,759,718.60 × 11,839,812.40
  4. Step 4: Simplify right side
    11,839,812.40x = 210,271,736,500,790.66
  5. Step 5: Solve for x
    x = 210,271,736,500,790.66/11,839,812.40
  6. Step 6: Final answer
    x = 17,759,718.60

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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.