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Finding the Fourth Proportional to 57,433.38, 86,151.68 and 15,880.38

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Solution

The fourth proportional to 57,433.38, 86,151.68 and 15,880.38 is: 23,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,433.38 : 86,151.68 = 15,880.38 : x
  2. Step 2: Convert to fraction form
    57,433.38/86,151.68 = 15,880.38/x
  3. Step 3: Cross multiply
    57,433.38x = 86,151.68 × 15,880.38
  4. Step 4: Simplify right side
    57,433.38x = 1,368,121,416.04
  5. Step 5: Solve for x
    x = 1,368,121,416.04/57,433.38
  6. Step 6: Final answer
    x = 23,821.02

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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.