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Finding the Fourth Proportional to 55,652.76, 76,774.98 and 49,285.80

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Solution

The fourth proportional to 55,652.76, 76,774.98 and 49,285.80 is: 67,991.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,652.76 : 76,774.98 = 49,285.80 : x
  2. Step 2: Convert to fraction form
    55,652.76/76,774.98 = 49,285.80/x
  3. Step 3: Cross multiply
    55,652.76x = 76,774.98 × 49,285.80
  4. Step 4: Simplify right side
    55,652.76x = 3,783,916,309.28
  5. Step 5: Solve for x
    x = 3,783,916,309.28/55,652.76
  6. Step 6: Final answer
    x = 67,991.53

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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.