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Finding the Fourth Proportional to 18,341.58, 25,311.51 and 9,958.08

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Solution

The fourth proportional to 18,341.58, 25,311.51 and 9,958.08 is: 13,742.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.58 : 25,311.51 = 9,958.08 : x
  2. Step 2: Convert to fraction form
    18,341.58/25,311.51 = 9,958.08/x
  3. Step 3: Cross multiply
    18,341.58x = 25,311.51 × 9,958.08
  4. Step 4: Simplify right side
    18,341.58x = 252,054,041.50
  5. Step 5: Solve for x
    x = 252,054,041.50/18,341.58
  6. Step 6: Final answer
    x = 13,742.22

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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.