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Finding the Fourth Proportional to 76,458.64, 114,704.36 and 26,540.32

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Solution

The fourth proportional to 76,458.64, 114,704.36 and 26,540.32 is: 39,816.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,458.64 : 114,704.36 = 26,540.32 : x
  2. Step 2: Convert to fraction form
    76,458.64/114,704.36 = 26,540.32/x
  3. Step 3: Cross multiply
    76,458.64x = 114,704.36 × 26,540.32
  4. Step 4: Simplify right side
    76,458.64x = 3,044,290,419.80
  5. Step 5: Solve for x
    x = 3,044,290,419.80/76,458.64
  6. Step 6: Final answer
    x = 39,816.17

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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.