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Finding the Fourth Proportional to 40,057.75, 60,096.35 and 12,355.75

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Solution

The fourth proportional to 40,057.75, 60,096.35 and 12,355.75 is: 18,536.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,057.75 : 60,096.35 = 12,355.75 : x
  2. Step 2: Convert to fraction form
    40,057.75/60,096.35 = 12,355.75/x
  3. Step 3: Cross multiply
    40,057.75x = 60,096.35 × 12,355.75
  4. Step 4: Simplify right side
    40,057.75x = 742,535,476.51
  5. Step 5: Solve for x
    x = 742,535,476.51/40,057.75
  6. Step 6: Final answer
    x = 18,536.62

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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.