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Finding the Fourth Proportional to 6,912.60, 10,368.90 and 4,944.30

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Solution

The fourth proportional to 6,912.60, 10,368.90 and 4,944.30 is: 7,416.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.60 : 10,368.90 = 4,944.30 : x
  2. Step 2: Convert to fraction form
    6,912.60/10,368.90 = 4,944.30/x
  3. Step 3: Cross multiply
    6,912.60x = 10,368.90 × 4,944.30
  4. Step 4: Simplify right side
    6,912.60x = 51,266,952.27
  5. Step 5: Solve for x
    x = 51,266,952.27/6,912.60
  6. Step 6: Final answer
    x = 7,416.45

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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.