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Finding the Fourth Proportional to 8,973.54, 12,383.30 and 5,197.39

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Solution

The fourth proportional to 8,973.54, 12,383.30 and 5,197.39 is: 7,172.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.54 : 12,383.30 = 5,197.39 : x
  2. Step 2: Convert to fraction form
    8,973.54/12,383.30 = 5,197.39/x
  3. Step 3: Cross multiply
    8,973.54x = 12,383.30 × 5,197.39
  4. Step 4: Simplify right side
    8,973.54x = 64,360,821.62
  5. Step 5: Solve for x
    x = 64,360,821.62/8,973.54
  6. Step 6: Final answer
    x = 7,172.29

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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.