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Finding the Fourth Proportional to 5,406.66, 7,461.18 and 3,048.78

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Solution

The fourth proportional to 5,406.66, 7,461.18 and 3,048.78 is: 4,207.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.66 : 7,461.18 = 3,048.78 : x
  2. Step 2: Convert to fraction form
    5,406.66/7,461.18 = 3,048.78/x
  3. Step 3: Cross multiply
    5,406.66x = 7,461.18 × 3,048.78
  4. Step 4: Simplify right side
    5,406.66x = 22,747,496.36
  5. Step 5: Solve for x
    x = 22,747,496.36/5,406.66
  6. Step 6: Final answer
    x = 4,207.31

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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.