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Finding the Fourth Proportional to 18,764.25, 25,850.84 and 13,088.88

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Solution

The fourth proportional to 18,764.25, 25,850.84 and 13,088.88 is: 18,032.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.25 : 25,850.84 = 13,088.88 : x
  2. Step 2: Convert to fraction form
    18,764.25/25,850.84 = 13,088.88/x
  3. Step 3: Cross multiply
    18,764.25x = 25,850.84 × 13,088.88
  4. Step 4: Simplify right side
    18,764.25x = 338,358,477.21
  5. Step 5: Solve for x
    x = 338,358,477.21/18,764.25
  6. Step 6: Final answer
    x = 18,032.08

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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.