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Finding the Fourth Proportional to 48,652.86, 72,986.80 and 20,573.01

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Solution

The fourth proportional to 48,652.86, 72,986.80 and 20,573.01 is: 30,862.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,652.86 : 72,986.80 = 20,573.01 : x
  2. Step 2: Convert to fraction form
    48,652.86/72,986.80 = 20,573.01/x
  3. Step 3: Cross multiply
    48,652.86x = 72,986.80 × 20,573.01
  4. Step 4: Simplify right side
    48,652.86x = 1,501,558,166.27
  5. Step 5: Solve for x
    x = 1,501,558,166.27/48,652.86
  6. Step 6: Final answer
    x = 30,862.69

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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.