Home / 19,012.13-28,518.19-5,161.13

Finding the Fourth Proportional to 19,012.13, 28,518.19 and 5,161.13

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Solution

The fourth proportional to 19,012.13, 28,518.19 and 5,161.13 is: 7,741.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,012.13 : 28,518.19 = 5,161.13 : x
  2. Step 2: Convert to fraction form
    19,012.13/28,518.19 = 5,161.13/x
  3. Step 3: Cross multiply
    19,012.13x = 28,518.19 × 5,161.13
  4. Step 4: Simplify right side
    19,012.13x = 147,185,930.46
  5. Step 5: Solve for x
    x = 147,185,930.46/19,012.13
  6. Step 6: Final answer
    x = 7,741.69

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.