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Finding the Fourth Proportional to 72,926.95, 109,390.43 and 17,522.95

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Solution

The fourth proportional to 72,926.95, 109,390.43 and 17,522.95 is: 26,284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,926.95 : 109,390.43 = 17,522.95 : x
  2. Step 2: Convert to fraction form
    72,926.95/109,390.43 = 17,522.95/x
  3. Step 3: Cross multiply
    72,926.95x = 109,390.43 × 17,522.95
  4. Step 4: Simplify right side
    72,926.95x = 1,916,843,388.17
  5. Step 5: Solve for x
    x = 1,916,843,388.17/72,926.95
  6. Step 6: Final answer
    x = 26,284.43

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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.