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Finding the Fourth Proportional to 45,373.56, 68,048.04 and 28,708.56

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Solution

The fourth proportional to 45,373.56, 68,048.04 and 28,708.56 is: 43,055.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,373.56 : 68,048.04 = 28,708.56 : x
  2. Step 2: Convert to fraction form
    45,373.56/68,048.04 = 28,708.56/x
  3. Step 3: Cross multiply
    45,373.56x = 68,048.04 × 28,708.56
  4. Step 4: Simplify right side
    45,373.56x = 1,953,561,239.22
  5. Step 5: Solve for x
    x = 1,953,561,239.22/45,373.56
  6. Step 6: Final answer
    x = 43,055.06

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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.