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Finding the Fourth Proportional to 43,656.30, 65,496.60 and 18,708.30

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Solution

The fourth proportional to 43,656.30, 65,496.60 and 18,708.30 is: 28,067.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,656.30 : 65,496.60 = 18,708.30 : x
  2. Step 2: Convert to fraction form
    43,656.30/65,496.60 = 18,708.30/x
  3. Step 3: Cross multiply
    43,656.30x = 65,496.60 × 18,708.30
  4. Step 4: Simplify right side
    43,656.30x = 1,225,330,041.78
  5. Step 5: Solve for x
    x = 1,225,330,041.78/43,656.30
  6. Step 6: Final answer
    x = 28,067.66

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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.