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Finding the Fourth Proportional to 5,497.66, 7,586.70 and 2,979.77

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Solution

The fourth proportional to 5,497.66, 7,586.70 and 2,979.77 is: 4,112.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,497.66 : 7,586.70 = 2,979.77 : x
  2. Step 2: Convert to fraction form
    5,497.66/7,586.70 = 2,979.77/x
  3. Step 3: Cross multiply
    5,497.66x = 7,586.70 × 2,979.77
  4. Step 4: Simplify right side
    5,497.66x = 22,606,621.06
  5. Step 5: Solve for x
    x = 22,606,621.06/5,497.66
  6. Step 6: Final answer
    x = 4,112.05

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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.