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Finding the Fourth Proportional to 76,617.30, 114,712.65 and 39,096.30

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Solution

The fourth proportional to 76,617.30, 114,712.65 and 39,096.30 is: 58,535.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,617.30 : 114,712.65 = 39,096.30 : x
  2. Step 2: Convert to fraction form
    76,617.30/114,712.65 = 39,096.30/x
  3. Step 3: Cross multiply
    76,617.30x = 114,712.65 × 39,096.30
  4. Step 4: Simplify right side
    76,617.30x = 4,484,840,178.20
  5. Step 5: Solve for x
    x = 4,484,840,178.20/76,617.30
  6. Step 6: Final answer
    x = 58,535.61

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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.