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Finding the Fourth Proportional to 8,656.33, 12,975.67 and 3,973.12

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Solution

The fourth proportional to 8,656.33, 12,975.67 and 3,973.12 is: 5,955.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.33 : 12,975.67 = 3,973.12 : x
  2. Step 2: Convert to fraction form
    8,656.33/12,975.67 = 3,973.12/x
  3. Step 3: Cross multiply
    8,656.33x = 12,975.67 × 3,973.12
  4. Step 4: Simplify right side
    8,656.33x = 51,553,893.99
  5. Step 5: Solve for x
    x = 51,553,893.99/8,656.33
  6. Step 6: Final answer
    x = 5,955.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.