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Finding the Fourth Proportional to 67,160.64, 100,740.96 and 17,240.76

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Solution

The fourth proportional to 67,160.64, 100,740.96 and 17,240.76 is: 25,861.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,160.64 : 100,740.96 = 17,240.76 : x
  2. Step 2: Convert to fraction form
    67,160.64/100,740.96 = 17,240.76/x
  3. Step 3: Cross multiply
    67,160.64x = 100,740.96 × 17,240.76
  4. Step 4: Simplify right side
    67,160.64x = 1,736,850,713.53
  5. Step 5: Solve for x
    x = 1,736,850,713.53/67,160.64
  6. Step 6: Final answer
    x = 25,861.14

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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.