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Finding the Fourth Proportional to 6,877.62, 9,491.25 and 3,893.46

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Solution

The fourth proportional to 6,877.62, 9,491.25 and 3,893.46 is: 5,373.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,877.62 : 9,491.25 = 3,893.46 : x
  2. Step 2: Convert to fraction form
    6,877.62/9,491.25 = 3,893.46/x
  3. Step 3: Cross multiply
    6,877.62x = 9,491.25 × 3,893.46
  4. Step 4: Simplify right side
    6,877.62x = 36,953,802.23
  5. Step 5: Solve for x
    x = 36,953,802.23/6,877.62
  6. Step 6: Final answer
    x = 5,373.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.