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Finding the Fourth Proportional to 19,075.62, 28,621.62 and 9,222.30

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Solution

The fourth proportional to 19,075.62, 28,621.62 and 9,222.30 is: 13,837.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,075.62 : 28,621.62 = 9,222.30 : x
  2. Step 2: Convert to fraction form
    19,075.62/28,621.62 = 9,222.30/x
  3. Step 3: Cross multiply
    19,075.62x = 28,621.62 × 9,222.30
  4. Step 4: Simplify right side
    19,075.62x = 263,957,166.13
  5. Step 5: Solve for x
    x = 263,957,166.13/19,075.62
  6. Step 6: Final answer
    x = 13,837.41

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1.5x scale

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.