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Finding the Fourth Proportional to 4,959.66, 7,439.40 and 4,184.64

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Solution

The fourth proportional to 4,959.66, 7,439.40 and 4,184.64 is: 6,276.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.66 : 7,439.40 = 4,184.64 : x
  2. Step 2: Convert to fraction form
    4,959.66/7,439.40 = 4,184.64/x
  3. Step 3: Cross multiply
    4,959.66x = 7,439.40 × 4,184.64
  4. Step 4: Simplify right side
    4,959.66x = 31,131,210.82
  5. Step 5: Solve for x
    x = 31,131,210.82/4,959.66
  6. Step 6: Final answer
    x = 6,276.88

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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.