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Finding the Fourth Proportional to 8,966.31, 13,451.63 and 2,810.31

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Solution

The fourth proportional to 8,966.31, 13,451.63 and 2,810.31 is: 4,216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.31 : 13,451.63 = 2,810.31 : x
  2. Step 2: Convert to fraction form
    8,966.31/13,451.63 = 2,810.31/x
  3. Step 3: Cross multiply
    8,966.31x = 13,451.63 × 2,810.31
  4. Step 4: Simplify right side
    8,966.31x = 37,803,280.42
  5. Step 5: Solve for x
    x = 37,803,280.42/8,966.31
  6. Step 6: Final answer
    x = 4,216.15

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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.