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Finding the Fourth Proportional to 5,607.84, 8,410.85 and 3,959.39

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Solution

The fourth proportional to 5,607.84, 8,410.85 and 3,959.39 is: 5,938.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.84 : 8,410.85 = 3,959.39 : x
  2. Step 2: Convert to fraction form
    5,607.84/8,410.85 = 3,959.39/x
  3. Step 3: Cross multiply
    5,607.84x = 8,410.85 × 3,959.39
  4. Step 4: Simplify right side
    5,607.84x = 33,301,851.46
  5. Step 5: Solve for x
    x = 33,301,851.46/5,607.84
  6. Step 6: Final answer
    x = 5,938.44

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1.5x scale

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.