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Finding the Fourth Proportional to 4,974.80, 7,425.96 and 4,425.60

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Solution

The fourth proportional to 4,974.80, 7,425.96 and 4,425.60 is: 6,606.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,974.80 : 7,425.96 = 4,425.60 : x
  2. Step 2: Convert to fraction form
    4,974.80/7,425.96 = 4,425.60/x
  3. Step 3: Cross multiply
    4,974.80x = 7,425.96 × 4,425.60
  4. Step 4: Simplify right side
    4,974.80x = 32,864,328.58
  5. Step 5: Solve for x
    x = 32,864,328.58/4,974.80
  6. Step 6: Final answer
    x = 6,606.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.