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Finding the Fourth Proportional to 8,673.42, 11,975.18 and 5,694.32

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Solution

The fourth proportional to 8,673.42, 11,975.18 and 5,694.32 is: 7,862.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.42 : 11,975.18 = 5,694.32 : x
  2. Step 2: Convert to fraction form
    8,673.42/11,975.18 = 5,694.32/x
  3. Step 3: Cross multiply
    8,673.42x = 11,975.18 × 5,694.32
  4. Step 4: Simplify right side
    8,673.42x = 68,190,506.98
  5. Step 5: Solve for x
    x = 68,190,506.98/8,673.42
  6. Step 6: Final answer
    x = 7,862.01

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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.