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Finding the Fourth Proportional to 55,490.84, 76,558.46 and 33,990.74

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Solution

The fourth proportional to 55,490.84, 76,558.46 and 33,990.74 is: 46,895.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,490.84 : 76,558.46 = 33,990.74 : x
  2. Step 2: Convert to fraction form
    55,490.84/76,558.46 = 33,990.74/x
  3. Step 3: Cross multiply
    55,490.84x = 76,558.46 × 33,990.74
  4. Step 4: Simplify right side
    55,490.84x = 2,602,278,708.66
  5. Step 5: Solve for x
    x = 2,602,278,708.66/55,490.84
  6. Step 6: Final answer
    x = 46,895.64

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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.