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Finding the Fourth Proportional to 8,802.90, 12,147.64 and 4,823.96

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Solution

The fourth proportional to 8,802.90, 12,147.64 and 4,823.96 is: 6,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,802.90 : 12,147.64 = 4,823.96 : x
  2. Step 2: Convert to fraction form
    8,802.90/12,147.64 = 4,823.96/x
  3. Step 3: Cross multiply
    8,802.90x = 12,147.64 × 4,823.96
  4. Step 4: Simplify right side
    8,802.90x = 58,599,656.66
  5. Step 5: Solve for x
    x = 58,599,656.66/8,802.90
  6. Step 6: Final answer
    x = 6,656.86

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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.