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Finding the Fourth Proportional to 7,263.96, 10,020.20 and 4,279.38

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Solution

The fourth proportional to 7,263.96, 10,020.20 and 4,279.38 is: 5,903.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,263.96 : 10,020.20 = 4,279.38 : x
  2. Step 2: Convert to fraction form
    7,263.96/10,020.20 = 4,279.38/x
  3. Step 3: Cross multiply
    7,263.96x = 10,020.20 × 4,279.38
  4. Step 4: Simplify right side
    7,263.96x = 42,880,243.48
  5. Step 5: Solve for x
    x = 42,880,243.48/7,263.96
  6. Step 6: Final answer
    x = 5,903.15

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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.