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Finding the Fourth Proportional to 18,322.35, 25,729.05 and 18,322.35

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Solution

The fourth proportional to 18,322.35, 25,729.05 and 18,322.35 is: 25,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.35 : 25,729.05 = 18,322.35 : x
  2. Step 2: Convert to fraction form
    18,322.35/25,729.05 = 18,322.35/x
  3. Step 3: Cross multiply
    18,322.35x = 25,729.05 × 18,322.35
  4. Step 4: Simplify right side
    18,322.35x = 471,416,659.27
  5. Step 5: Solve for x
    x = 471,416,659.27/18,322.35
  6. Step 6: Final answer
    x = 25,729.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.