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Finding the Fourth Proportional to 19,151.50, 26,429.40 and 10,654.30

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Solution

The fourth proportional to 19,151.50, 26,429.40 and 10,654.30 is: 14,703.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.50 : 26,429.40 = 10,654.30 : x
  2. Step 2: Convert to fraction form
    19,151.50/26,429.40 = 10,654.30/x
  3. Step 3: Cross multiply
    19,151.50x = 26,429.40 × 10,654.30
  4. Step 4: Simplify right side
    19,151.50x = 281,586,756.42
  5. Step 5: Solve for x
    x = 281,586,756.42/19,151.50
  6. Step 6: Final answer
    x = 14,703.12

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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.