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Finding the Fourth Proportional to 56,574.40, 84,850.80 and 17,132.80

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Solution

The fourth proportional to 56,574.40, 84,850.80 and 17,132.80 is: 25,695.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,574.40 : 84,850.80 = 17,132.80 : x
  2. Step 2: Convert to fraction form
    56,574.40/84,850.80 = 17,132.80/x
  3. Step 3: Cross multiply
    56,574.40x = 84,850.80 × 17,132.80
  4. Step 4: Simplify right side
    56,574.40x = 1,453,731,786.24
  5. Step 5: Solve for x
    x = 1,453,731,786.24/56,574.40
  6. Step 6: Final answer
    x = 25,695.93

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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.