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Finding the Fourth Proportional to 6,287,718.20, 9,431,577.30 and 6,287,718.20

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Solution

The fourth proportional to 6,287,718.20, 9,431,577.30 and 6,287,718.20 is: 9,431,577.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287,718.20 : 9,431,577.30 = 6,287,718.20 : x
  2. Step 2: Convert to fraction form
    6,287,718.20/9,431,577.30 = 6,287,718.20/x
  3. Step 3: Cross multiply
    6,287,718.20x = 9,431,577.30 × 6,287,718.20
  4. Step 4: Simplify right side
    6,287,718.20x = 59,303,100,243,916.87
  5. Step 5: Solve for x
    x = 59,303,100,243,916.87/6,287,718.20
  6. Step 6: Final answer
    x = 9,431,577.30

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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.