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Finding the Fourth Proportional to 7,653.77, 11,480.71 and 2,106.99

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Solution

The fourth proportional to 7,653.77, 11,480.71 and 2,106.99 is: 3,160.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.77 : 11,480.71 = 2,106.99 : x
  2. Step 2: Convert to fraction form
    7,653.77/11,480.71 = 2,106.99/x
  3. Step 3: Cross multiply
    7,653.77x = 11,480.71 × 2,106.99
  4. Step 4: Simplify right side
    7,653.77x = 24,189,735.90
  5. Step 5: Solve for x
    x = 24,189,735.90/7,653.77
  6. Step 6: Final answer
    x = 3,160.50

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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.