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Finding the Fourth Proportional to 4,979.52, 6,872.40 and 4,826.52

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Solution

The fourth proportional to 4,979.52, 6,872.40 and 4,826.52 is: 6,661.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.52 : 6,872.40 = 4,826.52 : x
  2. Step 2: Convert to fraction form
    4,979.52/6,872.40 = 4,826.52/x
  3. Step 3: Cross multiply
    4,979.52x = 6,872.40 × 4,826.52
  4. Step 4: Simplify right side
    4,979.52x = 33,169,776.05
  5. Step 5: Solve for x
    x = 33,169,776.05/4,979.52
  6. Step 6: Final answer
    x = 6,661.24

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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.