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Finding the Fourth Proportional to 7,179.88, 9,907.38 and 4,526.28

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Solution

The fourth proportional to 7,179.88, 9,907.38 and 4,526.28 is: 6,245.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.88 : 9,907.38 = 4,526.28 : x
  2. Step 2: Convert to fraction form
    7,179.88/9,907.38 = 4,526.28/x
  3. Step 3: Cross multiply
    7,179.88x = 9,907.38 × 4,526.28
  4. Step 4: Simplify right side
    7,179.88x = 44,843,575.95
  5. Step 5: Solve for x
    x = 44,843,575.95/7,179.88
  6. Step 6: Final answer
    x = 6,245.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.