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Finding the Fourth Proportional to 54,565, 81,860.19 and 17,123.02

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Solution

The fourth proportional to 54,565, 81,860.19 and 17,123.02 is: 25,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,565 : 81,860.19 = 17,123.02 : x
  2. Step 2: Convert to fraction form
    54,565/81,860.19 = 17,123.02/x
  3. Step 3: Cross multiply
    54,565x = 81,860.19 × 17,123.02
  4. Step 4: Simplify right side
    54,565x = 1,401,693,670.57
  5. Step 5: Solve for x
    x = 1,401,693,670.57/54,565
  6. Step 6: Final answer
    x = 25,688.51

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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.