Home / 55,081.04-76,013-29,930.32

Finding the Fourth Proportional to 55,081.04, 76,013 and 29,930.32

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Solution

The fourth proportional to 55,081.04, 76,013 and 29,930.32 is: 41,304.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,081.04 : 76,013 = 29,930.32 : x
  2. Step 2: Convert to fraction form
    55,081.04/76,013 = 29,930.32/x
  3. Step 3: Cross multiply
    55,081.04x = 76,013 × 29,930.32
  4. Step 4: Simplify right side
    55,081.04x = 2,275,093,414.16
  5. Step 5: Solve for x
    x = 2,275,093,414.16/55,081.04
  6. Step 6: Final answer
    x = 41,304.47

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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.