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Finding the Fourth Proportional to 18,494.40, 27,712.48 and 14,820.32

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Solution

The fourth proportional to 18,494.40, 27,712.48 and 14,820.32 is: 22,207.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,494.40 : 27,712.48 = 14,820.32 : x
  2. Step 2: Convert to fraction form
    18,494.40/27,712.48 = 14,820.32/x
  3. Step 3: Cross multiply
    18,494.40x = 27,712.48 × 14,820.32
  4. Step 4: Simplify right side
    18,494.40x = 410,707,821.59
  5. Step 5: Solve for x
    x = 410,707,821.59/18,494.40
  6. Step 6: Final answer
    x = 22,207.14

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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.