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Finding the Fourth Proportional to 93,958.30, 129,661.86 and 51,517

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Solution

The fourth proportional to 93,958.30, 129,661.86 and 51,517 is: 71,093.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,958.30 : 129,661.86 = 51,517 : x
  2. Step 2: Convert to fraction form
    93,958.30/129,661.86 = 51,517/x
  3. Step 3: Cross multiply
    93,958.30x = 129,661.86 × 51,517
  4. Step 4: Simplify right side
    93,958.30x = 6,679,790,041.62
  5. Step 5: Solve for x
    x = 6,679,790,041.62/93,958.30
  6. Step 6: Final answer
    x = 71,093.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.