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Finding the Fourth Proportional to 7,148.96, 10,723.44 and 4,699.28

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Solution

The fourth proportional to 7,148.96, 10,723.44 and 4,699.28 is: 7,048.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.96 : 10,723.44 = 4,699.28 : x
  2. Step 2: Convert to fraction form
    7,148.96/10,723.44 = 4,699.28/x
  3. Step 3: Cross multiply
    7,148.96x = 10,723.44 × 4,699.28
  4. Step 4: Simplify right side
    7,148.96x = 50,392,447.12
  5. Step 5: Solve for x
    x = 50,392,447.12/7,148.96
  6. Step 6: Final answer
    x = 7,048.92

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Similar ratio
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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.