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Finding the Fourth Proportional to 3,840.99, 5,300.96 and 2,349.90

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Solution

The fourth proportional to 3,840.99, 5,300.96 and 2,349.90 is: 3,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.99 : 5,300.96 = 2,349.90 : x
  2. Step 2: Convert to fraction form
    3,840.99/5,300.96 = 2,349.90/x
  3. Step 3: Cross multiply
    3,840.99x = 5,300.96 × 2,349.90
  4. Step 4: Simplify right side
    3,840.99x = 12,456,700.32
  5. Step 5: Solve for x
    x = 12,456,700.32/3,840.99
  6. Step 6: Final answer
    x = 3,243.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.