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Finding the Fourth Proportional to 56,530.80, 84,796.20 and 34,412.40

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Solution

The fourth proportional to 56,530.80, 84,796.20 and 34,412.40 is: 51,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,530.80 : 84,796.20 = 34,412.40 : x
  2. Step 2: Convert to fraction form
    56,530.80/84,796.20 = 34,412.40/x
  3. Step 3: Cross multiply
    56,530.80x = 84,796.20 × 34,412.40
  4. Step 4: Simplify right side
    56,530.80x = 2,918,040,752.88
  5. Step 5: Solve for x
    x = 2,918,040,752.88/56,530.80
  6. Step 6: Final answer
    x = 51,618.60

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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.