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Finding the Fourth Proportional to 18,176.54, 25,096.07 and 13,920.10

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Solution

The fourth proportional to 18,176.54, 25,096.07 and 13,920.10 is: 19,219.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,176.54 : 25,096.07 = 13,920.10 : x
  2. Step 2: Convert to fraction form
    18,176.54/25,096.07 = 13,920.10/x
  3. Step 3: Cross multiply
    18,176.54x = 25,096.07 × 13,920.10
  4. Step 4: Simplify right side
    18,176.54x = 349,339,671.67
  5. Step 5: Solve for x
    x = 349,339,671.67/18,176.54
  6. Step 6: Final answer
    x = 19,219.26

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1.5x scale

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.