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Finding the Fourth Proportional to 3,605.21, 4,972.63 and 2,343.93

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Solution

The fourth proportional to 3,605.21, 4,972.63 and 2,343.93 is: 3,232.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.21 : 4,972.63 = 2,343.93 : x
  2. Step 2: Convert to fraction form
    3,605.21/4,972.63 = 2,343.93/x
  3. Step 3: Cross multiply
    3,605.21x = 4,972.63 × 2,343.93
  4. Step 4: Simplify right side
    3,605.21x = 11,655,496.64
  5. Step 5: Solve for x
    x = 11,655,496.64/3,605.21
  6. Step 6: Final answer
    x = 3,232.96

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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.