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Finding the Fourth Proportional to 7,129.08, 10,693.26 and 2,449.08

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Solution

The fourth proportional to 7,129.08, 10,693.26 and 2,449.08 is: 3,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.08 : 10,693.26 = 2,449.08 : x
  2. Step 2: Convert to fraction form
    7,129.08/10,693.26 = 2,449.08/x
  3. Step 3: Cross multiply
    7,129.08x = 10,693.26 × 2,449.08
  4. Step 4: Simplify right side
    7,129.08x = 26,188,649.20
  5. Step 5: Solve for x
    x = 26,188,649.20/7,129.08
  6. Step 6: Final answer
    x = 3,673.50

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Half scale
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Double scale
Find fourth proportional to 7,130.08, 10,694.76 and 2,450.08
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.