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Finding the Fourth Proportional to 8,672.43, 11,967.94 and 4,693.54

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Solution

The fourth proportional to 8,672.43, 11,967.94 and 4,693.54 is: 6,477.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.43 : 11,967.94 = 4,693.54 : x
  2. Step 2: Convert to fraction form
    8,672.43/11,967.94 = 4,693.54/x
  3. Step 3: Cross multiply
    8,672.43x = 11,967.94 × 4,693.54
  4. Step 4: Simplify right side
    8,672.43x = 56,172,005.11
  5. Step 5: Solve for x
    x = 56,172,005.11/8,672.43
  6. Step 6: Final answer
    x = 6,477.08

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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.