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Finding the Fourth Proportional to 7,281.63, 10,926.09 and 2,907.63

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Solution

The fourth proportional to 7,281.63, 10,926.09 and 2,907.63 is: 4,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.63 : 10,926.09 = 2,907.63 : x
  2. Step 2: Convert to fraction form
    7,281.63/10,926.09 = 2,907.63/x
  3. Step 3: Cross multiply
    7,281.63x = 10,926.09 × 2,907.63
  4. Step 4: Simplify right side
    7,281.63x = 31,769,027.07
  5. Step 5: Solve for x
    x = 31,769,027.07/7,281.63
  6. Step 6: Final answer
    x = 4,362.90

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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.