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Finding the Fourth Proportional to 5,044.40, 7,568.40 and 2,123.60

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Solution

The fourth proportional to 5,044.40, 7,568.40 and 2,123.60 is: 3,186.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,044.40 : 7,568.40 = 2,123.60 : x
  2. Step 2: Convert to fraction form
    5,044.40/7,568.40 = 2,123.60/x
  3. Step 3: Cross multiply
    5,044.40x = 7,568.40 × 2,123.60
  4. Step 4: Simplify right side
    5,044.40x = 16,072,254.24
  5. Step 5: Solve for x
    x = 16,072,254.24/5,044.40
  6. Step 6: Final answer
    x = 3,186.16

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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.