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Finding the Fourth Proportional to 9,750.51, 13,450.95 and 6,391.85

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Solution

The fourth proportional to 9,750.51, 13,450.95 and 6,391.85 is: 8,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,750.51 : 13,450.95 = 6,391.85 : x
  2. Step 2: Convert to fraction form
    9,750.51/13,450.95 = 6,391.85/x
  3. Step 3: Cross multiply
    9,750.51x = 13,450.95 × 6,391.85
  4. Step 4: Simplify right side
    9,750.51x = 85,976,454.76
  5. Step 5: Solve for x
    x = 85,976,454.76/9,750.51
  6. Step 6: Final answer
    x = 8,817.64

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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.