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Finding the Fourth Proportional to 18,674.84, 25,735.80 and 13,360.43

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Solution

The fourth proportional to 18,674.84, 25,735.80 and 13,360.43 is: 18,412.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.84 : 25,735.80 = 13,360.43 : x
  2. Step 2: Convert to fraction form
    18,674.84/25,735.80 = 13,360.43/x
  3. Step 3: Cross multiply
    18,674.84x = 25,735.80 × 13,360.43
  4. Step 4: Simplify right side
    18,674.84x = 343,841,354.39
  5. Step 5: Solve for x
    x = 343,841,354.39/18,674.84
  6. Step 6: Final answer
    x = 18,412.01

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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.