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Finding the Fourth Proportional to 6,998.60, 10,497.90 and 6,674.60

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Solution

The fourth proportional to 6,998.60, 10,497.90 and 6,674.60 is: 10,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,998.60 : 10,497.90 = 6,674.60 : x
  2. Step 2: Convert to fraction form
    6,998.60/10,497.90 = 6,674.60/x
  3. Step 3: Cross multiply
    6,998.60x = 10,497.90 × 6,674.60
  4. Step 4: Simplify right side
    6,998.60x = 70,069,283.34
  5. Step 5: Solve for x
    x = 70,069,283.34/6,998.60
  6. Step 6: Final answer
    x = 10,011.90

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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.