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Finding the Fourth Proportional to 7,491.94, 11,180.94 and 6,661.58

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Solution

The fourth proportional to 7,491.94, 11,180.94 and 6,661.58 is: 9,941.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.94 : 11,180.94 = 6,661.58 : x
  2. Step 2: Convert to fraction form
    7,491.94/11,180.94 = 6,661.58/x
  3. Step 3: Cross multiply
    7,491.94x = 11,180.94 × 6,661.58
  4. Step 4: Simplify right side
    7,491.94x = 74,482,692.98
  5. Step 5: Solve for x
    x = 74,482,692.98/7,491.94
  6. Step 6: Final answer
    x = 9,941.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.