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Finding the Fourth Proportional to 8,467.90, 11,686.90 and 4,933.06

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Solution

The fourth proportional to 8,467.90, 11,686.90 and 4,933.06 is: 6,808.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,467.90 : 11,686.90 = 4,933.06 : x
  2. Step 2: Convert to fraction form
    8,467.90/11,686.90 = 4,933.06/x
  3. Step 3: Cross multiply
    8,467.90x = 11,686.90 × 4,933.06
  4. Step 4: Simplify right side
    8,467.90x = 57,652,178.91
  5. Step 5: Solve for x
    x = 57,652,178.91/8,467.90
  6. Step 6: Final answer
    x = 6,808.32

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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.