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Finding the Fourth Proportional to 52,783.86, 79,176.80 and 17,245.28

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Solution

The fourth proportional to 52,783.86, 79,176.80 and 17,245.28 is: 25,868.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,783.86 : 79,176.80 = 17,245.28 : x
  2. Step 2: Convert to fraction form
    52,783.86/79,176.80 = 17,245.28/x
  3. Step 3: Cross multiply
    52,783.86x = 79,176.80 × 17,245.28
  4. Step 4: Simplify right side
    52,783.86x = 1,365,425,689.62
  5. Step 5: Solve for x
    x = 1,365,425,689.62/52,783.86
  6. Step 6: Final answer
    x = 25,868.24

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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.