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Finding the Fourth Proportional to 8,369.30, 12,531.47 and 4,412.33

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Solution

The fourth proportional to 8,369.30, 12,531.47 and 4,412.33 is: 6,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.30 : 12,531.47 = 4,412.33 : x
  2. Step 2: Convert to fraction form
    8,369.30/12,531.47 = 4,412.33/x
  3. Step 3: Cross multiply
    8,369.30x = 12,531.47 × 4,412.33
  4. Step 4: Simplify right side
    8,369.30x = 55,292,943.30
  5. Step 5: Solve for x
    x = 55,292,943.30/8,369.30
  6. Step 6: Final answer
    x = 6,606.64

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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.