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Finding the Fourth Proportional to 53,162.96, 79,775.84 and 19,425.96

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Solution

The fourth proportional to 53,162.96, 79,775.84 and 19,425.96 is: 29,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,162.96 : 79,775.84 = 19,425.96 : x
  2. Step 2: Convert to fraction form
    53,162.96/79,775.84 = 19,425.96/x
  3. Step 3: Cross multiply
    53,162.96x = 79,775.84 × 19,425.96
  4. Step 4: Simplify right side
    53,162.96x = 1,549,722,276.81
  5. Step 5: Solve for x
    x = 1,549,722,276.81/53,162.96
  6. Step 6: Final answer
    x = 29,150.41

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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.