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Finding the Fourth Proportional to 5,588.82, 7,712.64 and 3,231

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Solution

The fourth proportional to 5,588.82, 7,712.64 and 3,231 is: 4,458.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,588.82 : 7,712.64 = 3,231 : x
  2. Step 2: Convert to fraction form
    5,588.82/7,712.64 = 3,231/x
  3. Step 3: Cross multiply
    5,588.82x = 7,712.64 × 3,231
  4. Step 4: Simplify right side
    5,588.82x = 24,919,539.84
  5. Step 5: Solve for x
    x = 24,919,539.84/5,588.82
  6. Step 6: Final answer
    x = 4,458.82

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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.