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Finding the Fourth Proportional to 2,735.28, 4,101.64 and 910

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Solution

The fourth proportional to 2,735.28, 4,101.64 and 910 is: 1,364.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,735.28 : 4,101.64 = 910 : x
  2. Step 2: Convert to fraction form
    2,735.28/4,101.64 = 910/x
  3. Step 3: Cross multiply
    2,735.28x = 4,101.64 × 910
  4. Step 4: Simplify right side
    2,735.28x = 3,732,492.40
  5. Step 5: Solve for x
    x = 3,732,492.40/2,735.28
  6. Step 6: Final answer
    x = 1,364.57

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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.