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Finding the Fourth Proportional to 6,665.99, 10,000.35 and 2,505.99

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Solution

The fourth proportional to 6,665.99, 10,000.35 and 2,505.99 is: 3,759.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.99 : 10,000.35 = 2,505.99 : x
  2. Step 2: Convert to fraction form
    6,665.99/10,000.35 = 2,505.99/x
  3. Step 3: Cross multiply
    6,665.99x = 10,000.35 × 2,505.99
  4. Step 4: Simplify right side
    6,665.99x = 25,060,777.10
  5. Step 5: Solve for x
    x = 25,060,777.10/6,665.99
  6. Step 6: Final answer
    x = 3,759.50

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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.