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Finding the Fourth Proportional to 7,794.80, 10,758.12 and 4,652.72

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Solution

The fourth proportional to 7,794.80, 10,758.12 and 4,652.72 is: 6,421.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,794.80 : 10,758.12 = 4,652.72 : x
  2. Step 2: Convert to fraction form
    7,794.80/10,758.12 = 4,652.72/x
  3. Step 3: Cross multiply
    7,794.80x = 10,758.12 × 4,652.72
  4. Step 4: Simplify right side
    7,794.80x = 50,054,520.09
  5. Step 5: Solve for x
    x = 50,054,520.09/7,794.80
  6. Step 6: Final answer
    x = 6,421.53

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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.