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Finding the Fourth Proportional to 7,425.92, 10,247.92 and 4,068.86

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Solution

The fourth proportional to 7,425.92, 10,247.92 and 4,068.86 is: 5,615.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.92 : 10,247.92 = 4,068.86 : x
  2. Step 2: Convert to fraction form
    7,425.92/10,247.92 = 4,068.86/x
  3. Step 3: Cross multiply
    7,425.92x = 10,247.92 × 4,068.86
  4. Step 4: Simplify right side
    7,425.92x = 41,697,351.77
  5. Step 5: Solve for x
    x = 41,697,351.77/7,425.92
  6. Step 6: Final answer
    x = 5,615.11

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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.