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Finding the Fourth Proportional to 18,582,990.60, 27,874,485.90 and 14,756,615.40

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Solution

The fourth proportional to 18,582,990.60, 27,874,485.90 and 14,756,615.40 is: 22,134,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,582,990.60 : 27,874,485.90 = 14,756,615.40 : x
  2. Step 2: Convert to fraction form
    18,582,990.60/27,874,485.90 = 14,756,615.40/x
  3. Step 3: Cross multiply
    18,582,990.60x = 27,874,485.90 × 14,756,615.40
  4. Step 4: Simplify right side
    18,582,990.60x = 411,333,067,899,022.88
  5. Step 5: Solve for x
    x = 411,333,067,899,022.88/18,582,990.60
  6. Step 6: Final answer
    x = 22,134,923.10

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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.