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Finding the Fourth Proportional to 6,979.73, 9,635.42 and 5,482.85

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Solution

The fourth proportional to 6,979.73, 9,635.42 and 5,482.85 is: 7,569.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.73 : 9,635.42 = 5,482.85 : x
  2. Step 2: Convert to fraction form
    6,979.73/9,635.42 = 5,482.85/x
  3. Step 3: Cross multiply
    6,979.73x = 9,635.42 × 5,482.85
  4. Step 4: Simplify right side
    6,979.73x = 52,829,528.08
  5. Step 5: Solve for x
    x = 52,829,528.08/6,979.73
  6. Step 6: Final answer
    x = 7,569.00

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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.