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Finding the Fourth Proportional to 16,665,497.28, 24,978,559.68 and 6,424,038.72

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Solution

The fourth proportional to 16,665,497.28, 24,978,559.68 and 6,424,038.72 is: 9,628,469.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,665,497.28 : 24,978,559.68 = 6,424,038.72 : x
  2. Step 2: Convert to fraction form
    16,665,497.28/24,978,559.68 = 6,424,038.72/x
  3. Step 3: Cross multiply
    16,665,497.28x = 24,978,559.68 × 6,424,038.72
  4. Step 4: Simplify right side
    16,665,497.28x = 160,463,234,554,150.81
  5. Step 5: Solve for x
    x = 160,463,234,554,150.81/16,665,497.28
  6. Step 6: Final answer
    x = 9,628,469.64

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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.