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Finding the Fourth Proportional to 45,871.40, 68,810.95 and 19,576.37

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Solution

The fourth proportional to 45,871.40, 68,810.95 and 19,576.37 is: 29,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,871.40 : 68,810.95 = 19,576.37 : x
  2. Step 2: Convert to fraction form
    45,871.40/68,810.95 = 19,576.37/x
  3. Step 3: Cross multiply
    45,871.40x = 68,810.95 × 19,576.37
  4. Step 4: Simplify right side
    45,871.40x = 1,347,068,617.25
  5. Step 5: Solve for x
    x = 1,347,068,617.25/45,871.40
  6. Step 6: Final answer
    x = 29,366.20

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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.