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Finding the Fourth Proportional to 1,144.84, 1,716.60 and 1,008.16

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Solution

The fourth proportional to 1,144.84, 1,716.60 and 1,008.16 is: 1,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.84 : 1,716.60 = 1,008.16 : x
  2. Step 2: Convert to fraction form
    1,144.84/1,716.60 = 1,008.16/x
  3. Step 3: Cross multiply
    1,144.84x = 1,716.60 × 1,008.16
  4. Step 4: Simplify right side
    1,144.84x = 1,730,607.46
  5. Step 5: Solve for x
    x = 1,730,607.46/1,144.84
  6. Step 6: Final answer
    x = 1,511.66

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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.