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Finding the Fourth Proportional to 5,281.46, 7,288.12 and 2,923.46

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Solution

The fourth proportional to 5,281.46, 7,288.12 and 2,923.46 is: 4,034.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.46 : 7,288.12 = 2,923.46 : x
  2. Step 2: Convert to fraction form
    5,281.46/7,288.12 = 2,923.46/x
  3. Step 3: Cross multiply
    5,281.46x = 7,288.12 × 2,923.46
  4. Step 4: Simplify right side
    5,281.46x = 21,306,527.30
  5. Step 5: Solve for x
    x = 21,306,527.30/5,281.46
  6. Step 6: Final answer
    x = 4,034.21

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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.