Home / 13,049.08-18,007.58-7,080.77

Finding the Fourth Proportional to 13,049.08, 18,007.58 and 7,080.77

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Solution

The fourth proportional to 13,049.08, 18,007.58 and 7,080.77 is: 9,771.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.08 : 18,007.58 = 7,080.77 : x
  2. Step 2: Convert to fraction form
    13,049.08/18,007.58 = 7,080.77/x
  3. Step 3: Cross multiply
    13,049.08x = 18,007.58 × 7,080.77
  4. Step 4: Simplify right side
    13,049.08x = 127,507,594.96
  5. Step 5: Solve for x
    x = 127,507,594.96/13,049.08
  6. Step 6: Final answer
    x = 9,771.39

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Half scale
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Double scale
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Similar ratio
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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.