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Finding the Fourth Proportional to 8,449,972.40, 12,674,958.60 and 4,855,732.40

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Solution

The fourth proportional to 8,449,972.40, 12,674,958.60 and 4,855,732.40 is: 7,283,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449,972.40 : 12,674,958.60 = 4,855,732.40 : x
  2. Step 2: Convert to fraction form
    8,449,972.40/12,674,958.60 = 4,855,732.40/x
  3. Step 3: Cross multiply
    8,449,972.40x = 12,674,958.60 × 4,855,732.40
  4. Step 4: Simplify right side
    8,449,972.40x = 61,546,207,142,678.64
  5. Step 5: Solve for x
    x = 61,546,207,142,678.64/8,449,972.40
  6. Step 6: Final answer
    x = 7,283,598.60

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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.