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Finding the Fourth Proportional to 8,808.45, 12,155.66 and 4,829.93

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Solution

The fourth proportional to 8,808.45, 12,155.66 and 4,829.93 is: 6,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.45 : 12,155.66 = 4,829.93 : x
  2. Step 2: Convert to fraction form
    8,808.45/12,155.66 = 4,829.93/x
  3. Step 3: Cross multiply
    8,808.45x = 12,155.66 × 4,829.93
  4. Step 4: Simplify right side
    8,808.45x = 58,710,986.90
  5. Step 5: Solve for x
    x = 58,710,986.90/8,808.45
  6. Step 6: Final answer
    x = 6,665.30

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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.