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Finding the Fourth Proportional to 11,851.84, 17,756.70 and 5,605.12

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Solution

The fourth proportional to 11,851.84, 17,756.70 and 5,605.12 is: 8,397.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,851.84 : 17,756.70 = 5,605.12 : x
  2. Step 2: Convert to fraction form
    11,851.84/17,756.70 = 5,605.12/x
  3. Step 3: Cross multiply
    11,851.84x = 17,756.70 × 5,605.12
  4. Step 4: Simplify right side
    11,851.84x = 99,528,434.30
  5. Step 5: Solve for x
    x = 99,528,434.30/11,851.84
  6. Step 6: Final answer
    x = 8,397.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.