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Finding the Fourth Proportional to 7,266.70, 10,900.05 and 6,316.30

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Solution

The fourth proportional to 7,266.70, 10,900.05 and 6,316.30 is: 9,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,266.70 : 10,900.05 = 6,316.30 : x
  2. Step 2: Convert to fraction form
    7,266.70/10,900.05 = 6,316.30/x
  3. Step 3: Cross multiply
    7,266.70x = 10,900.05 × 6,316.30
  4. Step 4: Simplify right side
    7,266.70x = 68,847,985.82
  5. Step 5: Solve for x
    x = 68,847,985.82/7,266.70
  6. Step 6: Final answer
    x = 9,474.45

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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.