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Finding the Fourth Proportional to 76,957.20, 115,435.80 and 24,366.60

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Solution

The fourth proportional to 76,957.20, 115,435.80 and 24,366.60 is: 36,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,957.20 : 115,435.80 = 24,366.60 : x
  2. Step 2: Convert to fraction form
    76,957.20/115,435.80 = 24,366.60/x
  3. Step 3: Cross multiply
    76,957.20x = 115,435.80 × 24,366.60
  4. Step 4: Simplify right side
    76,957.20x = 2,812,777,964.28
  5. Step 5: Solve for x
    x = 2,812,777,964.28/76,957.20
  6. Step 6: Final answer
    x = 36,549.90

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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.