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Finding the Fourth Proportional to 17,982,602.20, 26,973,903.30 and 12,243,039.40

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Solution

The fourth proportional to 17,982,602.20, 26,973,903.30 and 12,243,039.40 is: 18,364,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,982,602.20 : 26,973,903.30 = 12,243,039.40 : x
  2. Step 2: Convert to fraction form
    17,982,602.20/26,973,903.30 = 12,243,039.40/x
  3. Step 3: Cross multiply
    17,982,602.20x = 26,973,903.30 × 12,243,039.40
  4. Step 4: Simplify right side
    17,982,602.20x = 330,242,560,873,690.06
  5. Step 5: Solve for x
    x = 330,242,560,873,690.06/17,982,602.20
  6. Step 6: Final answer
    x = 18,364,559.10

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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.