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Finding the Fourth Proportional to 18,127,927.20, 27,223,383.60 and 9,624,871.20

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Solution

The fourth proportional to 18,127,927.20, 27,223,383.60 and 9,624,871.20 is: 14,454,027.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127,927.20 : 27,223,383.60 = 9,624,871.20 : x
  2. Step 2: Convert to fraction form
    18,127,927.20/27,223,383.60 = 9,624,871.20/x
  3. Step 3: Cross multiply
    18,127,927.20x = 27,223,383.60 × 9,624,871.20
  4. Step 4: Simplify right side
    18,127,927.20x = 262,021,560,778,192.31
  5. Step 5: Solve for x
    x = 262,021,560,778,192.31/18,127,927.20
  6. Step 6: Final answer
    x = 14,454,027.64

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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.