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Finding the Fourth Proportional to 7,399, 10,211.16 and 4,255.93

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Solution

The fourth proportional to 7,399, 10,211.16 and 4,255.93 is: 5,873.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,399 : 10,211.16 = 4,255.93 : x
  2. Step 2: Convert to fraction form
    7,399/10,211.16 = 4,255.93/x
  3. Step 3: Cross multiply
    7,399x = 10,211.16 × 4,255.93
  4. Step 4: Simplify right side
    7,399x = 43,457,982.18
  5. Step 5: Solve for x
    x = 43,457,982.18/7,399
  6. Step 6: Final answer
    x = 5,873.49

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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.