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Finding the Fourth Proportional to 7,763.52, 10,713.30 and 4,226.72

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Solution

The fourth proportional to 7,763.52, 10,713.30 and 4,226.72 is: 5,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.52 : 10,713.30 = 4,226.72 : x
  2. Step 2: Convert to fraction form
    7,763.52/10,713.30 = 4,226.72/x
  3. Step 3: Cross multiply
    7,763.52x = 10,713.30 × 4,226.72
  4. Step 4: Simplify right side
    7,763.52x = 45,282,119.38
  5. Step 5: Solve for x
    x = 45,282,119.38/7,763.52
  6. Step 6: Final answer
    x = 5,832.68

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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.