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Finding the Fourth Proportional to 57,938.64, 79,962 and 35,290.92

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Solution

The fourth proportional to 57,938.64, 79,962 and 35,290.92 is: 48,705.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,938.64 : 79,962 = 35,290.92 : x
  2. Step 2: Convert to fraction form
    57,938.64/79,962 = 35,290.92/x
  3. Step 3: Cross multiply
    57,938.64x = 79,962 × 35,290.92
  4. Step 4: Simplify right side
    57,938.64x = 2,821,932,545.04
  5. Step 5: Solve for x
    x = 2,821,932,545.04/57,938.64
  6. Step 6: Final answer
    x = 48,705.54

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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.