Home / 18,905.17-28,353.96-17,968.45

Finding the Fourth Proportional to 18,905.17, 28,353.96 and 17,968.45

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Solution

The fourth proportional to 18,905.17, 28,353.96 and 17,968.45 is: 26,949.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.17 : 28,353.96 = 17,968.45 : x
  2. Step 2: Convert to fraction form
    18,905.17/28,353.96 = 17,968.45/x
  3. Step 3: Cross multiply
    18,905.17x = 28,353.96 × 17,968.45
  4. Step 4: Simplify right side
    18,905.17x = 509,476,712.56
  5. Step 5: Solve for x
    x = 509,476,712.56/18,905.17
  6. Step 6: Final answer
    x = 26,949.07

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1.5x scale

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.