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Finding the Fourth Proportional to 8,076.63, 12,113.88 and 2,810.52

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Solution

The fourth proportional to 8,076.63, 12,113.88 and 2,810.52 is: 4,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.63 : 12,113.88 = 2,810.52 : x
  2. Step 2: Convert to fraction form
    8,076.63/12,113.88 = 2,810.52/x
  3. Step 3: Cross multiply
    8,076.63x = 12,113.88 × 2,810.52
  4. Step 4: Simplify right side
    8,076.63x = 34,046,252.53
  5. Step 5: Solve for x
    x = 34,046,252.53/8,076.63
  6. Step 6: Final answer
    x = 4,215.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.