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Finding the Fourth Proportional to 57,351.48, 85,930.14 and 35,118.45

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Solution

The fourth proportional to 57,351.48, 85,930.14 and 35,118.45 is: 52,618.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,351.48 : 85,930.14 = 35,118.45 : x
  2. Step 2: Convert to fraction form
    57,351.48/85,930.14 = 35,118.45/x
  3. Step 3: Cross multiply
    57,351.48x = 85,930.14 × 35,118.45
  4. Step 4: Simplify right side
    57,351.48x = 3,017,733,325.08
  5. Step 5: Solve for x
    x = 3,017,733,325.08/57,351.48
  6. Step 6: Final answer
    x = 52,618.23

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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.