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Finding the Fourth Proportional to 76,687.20, 115,030.80 and 24,096.60

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Solution

The fourth proportional to 76,687.20, 115,030.80 and 24,096.60 is: 36,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,687.20 : 115,030.80 = 24,096.60 : x
  2. Step 2: Convert to fraction form
    76,687.20/115,030.80 = 24,096.60/x
  3. Step 3: Cross multiply
    76,687.20x = 115,030.80 × 24,096.60
  4. Step 4: Simplify right side
    76,687.20x = 2,771,851,175.28
  5. Step 5: Solve for x
    x = 2,771,851,175.28/76,687.20
  6. Step 6: Final answer
    x = 36,144.90

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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.