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Finding the Fourth Proportional to 58,743.72, 81,109 and 36,113.54

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Solution

The fourth proportional to 58,743.72, 81,109 and 36,113.54 is: 49,862.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,743.72 : 81,109 = 36,113.54 : x
  2. Step 2: Convert to fraction form
    58,743.72/81,109 = 36,113.54/x
  3. Step 3: Cross multiply
    58,743.72x = 81,109 × 36,113.54
  4. Step 4: Simplify right side
    58,743.72x = 2,929,133,115.86
  5. Step 5: Solve for x
    x = 2,929,133,115.86/58,743.72
  6. Step 6: Final answer
    x = 49,862.91

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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.