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Finding the Fourth Proportional to 7,392.81, 10,200.56 and 4,248.39

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Solution

The fourth proportional to 7,392.81, 10,200.56 and 4,248.39 is: 5,861.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392.81 : 10,200.56 = 4,248.39 : x
  2. Step 2: Convert to fraction form
    7,392.81/10,200.56 = 4,248.39/x
  3. Step 3: Cross multiply
    7,392.81x = 10,200.56 × 4,248.39
  4. Step 4: Simplify right side
    7,392.81x = 43,335,935.86
  5. Step 5: Solve for x
    x = 43,335,935.86/7,392.81
  6. Step 6: Final answer
    x = 5,861.90

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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.