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Finding the Fourth Proportional to 52,811.70, 79,167.90 and 17,726.76

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Solution

The fourth proportional to 52,811.70, 79,167.90 and 17,726.76 is: 26,573.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,811.70 : 79,167.90 = 17,726.76 : x
  2. Step 2: Convert to fraction form
    52,811.70/79,167.90 = 17,726.76/x
  3. Step 3: Cross multiply
    52,811.70x = 79,167.90 × 17,726.76
  4. Step 4: Simplify right side
    52,811.70x = 1,403,390,363.00
  5. Step 5: Solve for x
    x = 1,403,390,363.00/52,811.70
  6. Step 6: Final answer
    x = 26,573.47

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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.