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Finding the Fourth Proportional to 58,480.80, 87,678 and 48,579.36

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Solution

The fourth proportional to 58,480.80, 87,678 and 48,579.36 is: 72,833.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,480.80 : 87,678 = 48,579.36 : x
  2. Step 2: Convert to fraction form
    58,480.80/87,678 = 48,579.36/x
  3. Step 3: Cross multiply
    58,480.80x = 87,678 × 48,579.36
  4. Step 4: Simplify right side
    58,480.80x = 4,259,341,126.08
  5. Step 5: Solve for x
    x = 4,259,341,126.08/58,480.80
  6. Step 6: Final answer
    x = 72,833.15

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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.