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Finding the Fourth Proportional to 67,998.93, 93,811.64 and 39,313.31

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Solution

The fourth proportional to 67,998.93, 93,811.64 and 39,313.31 is: 54,236.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,998.93 : 93,811.64 = 39,313.31 : x
  2. Step 2: Convert to fraction form
    67,998.93/93,811.64 = 39,313.31/x
  3. Step 3: Cross multiply
    67,998.93x = 93,811.64 × 39,313.31
  4. Step 4: Simplify right side
    67,998.93x = 3,688,045,419.30
  5. Step 5: Solve for x
    x = 3,688,045,419.30/67,998.93
  6. Step 6: Final answer
    x = 54,236.82

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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.