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Finding the Fourth Proportional to 8,786.48, 12,125.03 and 4,807.53

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Solution

The fourth proportional to 8,786.48, 12,125.03 and 4,807.53 is: 6,634.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.48 : 12,125.03 = 4,807.53 : x
  2. Step 2: Convert to fraction form
    8,786.48/12,125.03 = 4,807.53/x
  3. Step 3: Cross multiply
    8,786.48x = 12,125.03 × 4,807.53
  4. Step 4: Simplify right side
    8,786.48x = 58,291,421.44
  5. Step 5: Solve for x
    x = 58,291,421.44/8,786.48
  6. Step 6: Final answer
    x = 6,634.22

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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.