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Finding the Fourth Proportional to 45,386.70, 68,080.44 and 15,804.48

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Solution

The fourth proportional to 45,386.70, 68,080.44 and 15,804.48 is: 23,706.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,386.70 : 68,080.44 = 15,804.48 : x
  2. Step 2: Convert to fraction form
    45,386.70/68,080.44 = 15,804.48/x
  3. Step 3: Cross multiply
    45,386.70x = 68,080.44 × 15,804.48
  4. Step 4: Simplify right side
    45,386.70x = 1,075,975,952.37
  5. Step 5: Solve for x
    x = 1,075,975,952.37/45,386.70
  6. Step 6: Final answer
    x = 23,706.86

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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.