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Finding the Fourth Proportional to 7,458.84, 11,188.26 and 6,966.72

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Solution

The fourth proportional to 7,458.84, 11,188.26 and 6,966.72 is: 10,450.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,458.84 : 11,188.26 = 6,966.72 : x
  2. Step 2: Convert to fraction form
    7,458.84/11,188.26 = 6,966.72/x
  3. Step 3: Cross multiply
    7,458.84x = 11,188.26 × 6,966.72
  4. Step 4: Simplify right side
    7,458.84x = 77,945,474.71
  5. Step 5: Solve for x
    x = 77,945,474.71/7,458.84
  6. Step 6: Final answer
    x = 10,450.08

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Similar ratio
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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.