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Finding the Fourth Proportional to 18,832.17, 25,978.49 and 14,348.13

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Solution

The fourth proportional to 18,832.17, 25,978.49 and 14,348.13 is: 19,792.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.17 : 25,978.49 = 14,348.13 : x
  2. Step 2: Convert to fraction form
    18,832.17/25,978.49 = 14,348.13/x
  3. Step 3: Cross multiply
    18,832.17x = 25,978.49 × 14,348.13
  4. Step 4: Simplify right side
    18,832.17x = 372,742,751.72
  5. Step 5: Solve for x
    x = 372,742,751.72/18,832.17
  6. Step 6: Final answer
    x = 19,792.88

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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.