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Finding the Fourth Proportional to 8,973.42, 12,383.99 and 5,197.60

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Solution

The fourth proportional to 8,973.42, 12,383.99 and 5,197.60 is: 7,173.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.42 : 12,383.99 = 5,197.60 : x
  2. Step 2: Convert to fraction form
    8,973.42/12,383.99 = 5,197.60/x
  3. Step 3: Cross multiply
    8,973.42x = 12,383.99 × 5,197.60
  4. Step 4: Simplify right side
    8,973.42x = 64,367,026.42
  5. Step 5: Solve for x
    x = 64,367,026.42/8,973.42
  6. Step 6: Final answer
    x = 7,173.08

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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.