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Finding the Fourth Proportional to 8,862.81, 12,230.52 and 4,829.67

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Solution

The fourth proportional to 8,862.81, 12,230.52 and 4,829.67 is: 6,664.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.81 : 12,230.52 = 4,829.67 : x
  2. Step 2: Convert to fraction form
    8,862.81/12,230.52 = 4,829.67/x
  3. Step 3: Cross multiply
    8,862.81x = 12,230.52 × 4,829.67
  4. Step 4: Simplify right side
    8,862.81x = 59,069,419.79
  5. Step 5: Solve for x
    x = 59,069,419.79/8,862.81
  6. Step 6: Final answer
    x = 6,664.86

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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.