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Finding the Fourth Proportional to 12,075,271.70, 18,112,907.55 and 12,075,271.70

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Solution

The fourth proportional to 12,075,271.70, 18,112,907.55 and 12,075,271.70 is: 18,112,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075,271.70 : 18,112,907.55 = 12,075,271.70 : x
  2. Step 2: Convert to fraction form
    12,075,271.70/18,112,907.55 = 12,075,271.70/x
  3. Step 3: Cross multiply
    12,075,271.70x = 18,112,907.55 × 12,075,271.70
  4. Step 4: Simplify right side
    12,075,271.70x = 218,718,279,943,231.34
  5. Step 5: Solve for x
    x = 218,718,279,943,231.34/12,075,271.70
  6. Step 6: Final answer
    x = 18,112,907.55

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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.