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Finding the Fourth Proportional to 5,262.72, 7,263.12 and 3,934.14

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Solution

The fourth proportional to 5,262.72, 7,263.12 and 3,934.14 is: 5,429.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,262.72 : 7,263.12 = 3,934.14 : x
  2. Step 2: Convert to fraction form
    5,262.72/7,263.12 = 3,934.14/x
  3. Step 3: Cross multiply
    5,262.72x = 7,263.12 × 3,934.14
  4. Step 4: Simplify right side
    5,262.72x = 28,574,130.92
  5. Step 5: Solve for x
    x = 28,574,130.92/5,262.72
  6. Step 6: Final answer
    x = 5,429.54

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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.