Home / 19,053.16-26,286.78-11,980.12

Finding the Fourth Proportional to 19,053.16, 26,286.78 and 11,980.12

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Solution

The fourth proportional to 19,053.16, 26,286.78 and 11,980.12 is: 16,528.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,053.16 : 26,286.78 = 11,980.12 : x
  2. Step 2: Convert to fraction form
    19,053.16/26,286.78 = 11,980.12/x
  3. Step 3: Cross multiply
    19,053.16x = 26,286.78 × 11,980.12
  4. Step 4: Simplify right side
    19,053.16x = 314,918,778.81
  5. Step 5: Solve for x
    x = 314,918,778.81/19,053.16
  6. Step 6: Final answer
    x = 16,528.43

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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.