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Finding the Fourth Proportional to 20,593.73, 30,816.79 and 17,829.95

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Solution

The fourth proportional to 20,593.73, 30,816.79 and 17,829.95 is: 26,681.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.73 : 30,816.79 = 17,829.95 : x
  2. Step 2: Convert to fraction form
    20,593.73/30,816.79 = 17,829.95/x
  3. Step 3: Cross multiply
    20,593.73x = 30,816.79 × 17,829.95
  4. Step 4: Simplify right side
    20,593.73x = 549,461,626.20
  5. Step 5: Solve for x
    x = 549,461,626.20/20,593.73
  6. Step 6: Final answer
    x = 26,681.01

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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.