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Finding the Fourth Proportional to 72,927.92, 109,391.87 and 23,679.92

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Solution

The fourth proportional to 72,927.92, 109,391.87 and 23,679.92 is: 35,519.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,927.92 : 109,391.87 = 23,679.92 : x
  2. Step 2: Convert to fraction form
    72,927.92/109,391.87 = 23,679.92/x
  3. Step 3: Cross multiply
    72,927.92x = 109,391.87 × 23,679.92
  4. Step 4: Simplify right side
    72,927.92x = 2,590,390,242.49
  5. Step 5: Solve for x
    x = 2,590,390,242.49/72,927.92
  6. Step 6: Final answer
    x = 35,519.87

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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.