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Finding the Fourth Proportional to 8,652.07, 11,939.72 and 4,875.40

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Solution

The fourth proportional to 8,652.07, 11,939.72 and 4,875.40 is: 6,727.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.07 : 11,939.72 = 4,875.40 : x
  2. Step 2: Convert to fraction form
    8,652.07/11,939.72 = 4,875.40/x
  3. Step 3: Cross multiply
    8,652.07x = 11,939.72 × 4,875.40
  4. Step 4: Simplify right side
    8,652.07x = 58,210,910.89
  5. Step 5: Solve for x
    x = 58,210,910.89/8,652.07
  6. Step 6: Final answer
    x = 6,727.98

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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.