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Finding the Fourth Proportional to 8,973.67, 12,383.25 and 5,989.09

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Solution

The fourth proportional to 8,973.67, 12,383.25 and 5,989.09 is: 8,264.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.67 : 12,383.25 = 5,989.09 : x
  2. Step 2: Convert to fraction form
    8,973.67/12,383.25 = 5,989.09/x
  3. Step 3: Cross multiply
    8,973.67x = 12,383.25 × 5,989.09
  4. Step 4: Simplify right side
    8,973.67x = 74,164,398.74
  5. Step 5: Solve for x
    x = 74,164,398.74/8,973.67
  6. Step 6: Final answer
    x = 8,264.67

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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.