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Finding the Fourth Proportional to 58,082.08, 80,153.12 and 31,586.08

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Solution

The fourth proportional to 58,082.08, 80,153.12 and 31,586.08 is: 43,588.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,082.08 : 80,153.12 = 31,586.08 : x
  2. Step 2: Convert to fraction form
    58,082.08/80,153.12 = 31,586.08/x
  3. Step 3: Cross multiply
    58,082.08x = 80,153.12 × 31,586.08
  4. Step 4: Simplify right side
    58,082.08x = 2,531,722,860.57
  5. Step 5: Solve for x
    x = 2,531,722,860.57/58,082.08
  6. Step 6: Final answer
    x = 43,588.71

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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.