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Finding the Fourth Proportional to 7,399.92, 10,213.56 and 5,043

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Solution

The fourth proportional to 7,399.92, 10,213.56 and 5,043 is: 6,960.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,399.92 : 10,213.56 = 5,043 : x
  2. Step 2: Convert to fraction form
    7,399.92/10,213.56 = 5,043/x
  3. Step 3: Cross multiply
    7,399.92x = 10,213.56 × 5,043
  4. Step 4: Simplify right side
    7,399.92x = 51,506,983.08
  5. Step 5: Solve for x
    x = 51,506,983.08/7,399.92
  6. Step 6: Final answer
    x = 6,960.48

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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.