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Finding the Fourth Proportional to 7,561.88, 11,342.70 and 5,482.88

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Solution

The fourth proportional to 7,561.88, 11,342.70 and 5,482.88 is: 8,224.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,561.88 : 11,342.70 = 5,482.88 : x
  2. Step 2: Convert to fraction form
    7,561.88/11,342.70 = 5,482.88/x
  3. Step 3: Cross multiply
    7,561.88x = 11,342.70 × 5,482.88
  4. Step 4: Simplify right side
    7,561.88x = 62,190,662.98
  5. Step 5: Solve for x
    x = 62,190,662.98/7,561.88
  6. Step 6: Final answer
    x = 8,224.23

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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.