Home / 27,528.38-38,000.79-18,587.99

Finding the Fourth Proportional to 27,528.38, 38,000.79 and 18,587.99

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Solution

The fourth proportional to 27,528.38, 38,000.79 and 18,587.99 is: 25,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,528.38 : 38,000.79 = 18,587.99 : x
  2. Step 2: Convert to fraction form
    27,528.38/38,000.79 = 18,587.99/x
  3. Step 3: Cross multiply
    27,528.38x = 38,000.79 × 18,587.99
  4. Step 4: Simplify right side
    27,528.38x = 706,358,304.51
  5. Step 5: Solve for x
    x = 706,358,304.51/27,528.38
  6. Step 6: Final answer
    x = 25,659.28

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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.