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Finding the Fourth Proportional to 6,517,851.30, 9,776,728.35 and 1,968,891.30

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Solution

The fourth proportional to 6,517,851.30, 9,776,728.35 and 1,968,891.30 is: 2,953,322.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517,851.30 : 9,776,728.35 = 1,968,891.30 : x
  2. Step 2: Convert to fraction form
    6,517,851.30/9,776,728.35 = 1,968,891.30/x
  3. Step 3: Cross multiply
    6,517,851.30x = 9,776,728.35 × 1,968,891.30
  4. Step 4: Simplify right side
    6,517,851.30x = 19,249,315,390,778.36
  5. Step 5: Solve for x
    x = 19,249,315,390,778.36/6,517,851.30
  6. Step 6: Final answer
    x = 2,953,322.27

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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.