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Finding the Fourth Proportional to 18,752, 25,878.24 and 11,300.48

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Solution

The fourth proportional to 18,752, 25,878.24 and 11,300.48 is: 15,594.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752 : 25,878.24 = 11,300.48 : x
  2. Step 2: Convert to fraction form
    18,752/25,878.24 = 11,300.48/x
  3. Step 3: Cross multiply
    18,752x = 25,878.24 × 11,300.48
  4. Step 4: Simplify right side
    18,752x = 292,436,533.56
  5. Step 5: Solve for x
    x = 292,436,533.56/18,752
  6. Step 6: Final answer
    x = 15,594.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.