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Finding the Fourth Proportional to 8,652.12, 11,939.93 and 4,875.30

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Solution

The fourth proportional to 8,652.12, 11,939.93 and 4,875.30 is: 6,727.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.12 : 11,939.93 = 4,875.30 : x
  2. Step 2: Convert to fraction form
    8,652.12/11,939.93 = 4,875.30/x
  3. Step 3: Cross multiply
    8,652.12x = 11,939.93 × 4,875.30
  4. Step 4: Simplify right side
    8,652.12x = 58,210,716.35
  5. Step 5: Solve for x
    x = 58,210,716.35/8,652.12
  6. Step 6: Final answer
    x = 6,727.91

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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.