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Finding the Fourth Proportional to 30,651.48, 42,299.01 and 17,913.42

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Solution

The fourth proportional to 30,651.48, 42,299.01 and 17,913.42 is: 24,720.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651.48 : 42,299.01 = 17,913.42 : x
  2. Step 2: Convert to fraction form
    30,651.48/42,299.01 = 17,913.42/x
  3. Step 3: Cross multiply
    30,651.48x = 42,299.01 × 17,913.42
  4. Step 4: Simplify right side
    30,651.48x = 757,719,931.71
  5. Step 5: Solve for x
    x = 757,719,931.71/30,651.48
  6. Step 6: Final answer
    x = 24,720.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.