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Finding the Fourth Proportional to 7,113.92, 10,670.92 and 4,664.24

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Solution

The fourth proportional to 7,113.92, 10,670.92 and 4,664.24 is: 6,996.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.92 : 10,670.92 = 4,664.24 : x
  2. Step 2: Convert to fraction form
    7,113.92/10,670.92 = 4,664.24/x
  3. Step 3: Cross multiply
    7,113.92x = 10,670.92 × 4,664.24
  4. Step 4: Simplify right side
    7,113.92x = 49,771,731.90
  5. Step 5: Solve for x
    x = 49,771,731.90/7,113.92
  6. Step 6: Final answer
    x = 6,996.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.