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Finding the Fourth Proportional to 55,507.68, 76,574.97 and 33,990.84

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Solution

The fourth proportional to 55,507.68, 76,574.97 and 33,990.84 is: 46,891.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,507.68 : 76,574.97 = 33,990.84 : x
  2. Step 2: Convert to fraction form
    55,507.68/76,574.97 = 33,990.84/x
  3. Step 3: Cross multiply
    55,507.68x = 76,574.97 × 33,990.84
  4. Step 4: Simplify right side
    55,507.68x = 2,602,847,553.27
  5. Step 5: Solve for x
    x = 2,602,847,553.27/55,507.68
  6. Step 6: Final answer
    x = 46,891.67

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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.