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Finding the Fourth Proportional to 58,627.54, 80,933.90 and 39,279.77

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Solution

The fourth proportional to 58,627.54, 80,933.90 and 39,279.77 is: 54,224.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,627.54 : 80,933.90 = 39,279.77 : x
  2. Step 2: Convert to fraction form
    58,627.54/80,933.90 = 39,279.77/x
  3. Step 3: Cross multiply
    58,627.54x = 80,933.90 × 39,279.77
  4. Step 4: Simplify right side
    58,627.54x = 3,179,064,977.20
  5. Step 5: Solve for x
    x = 3,179,064,977.20/58,627.54
  6. Step 6: Final answer
    x = 54,224.77

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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.