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Finding the Fourth Proportional to 67,301.28, 92,874.60 and 39,009.60

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Solution

The fourth proportional to 67,301.28, 92,874.60 and 39,009.60 is: 53,832.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,301.28 : 92,874.60 = 39,009.60 : x
  2. Step 2: Convert to fraction form
    67,301.28/92,874.60 = 39,009.60/x
  3. Step 3: Cross multiply
    67,301.28x = 92,874.60 × 39,009.60
  4. Step 4: Simplify right side
    67,301.28x = 3,623,000,996.16
  5. Step 5: Solve for x
    x = 3,623,000,996.16/67,301.28
  6. Step 6: Final answer
    x = 53,832.57

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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.