Home / 27,681.04-38,188.20-19,302.40

Finding the Fourth Proportional to 27,681.04, 38,188.20 and 19,302.40

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Solution

The fourth proportional to 27,681.04, 38,188.20 and 19,302.40 is: 26,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,681.04 : 38,188.20 = 19,302.40 : x
  2. Step 2: Convert to fraction form
    27,681.04/38,188.20 = 19,302.40/x
  3. Step 3: Cross multiply
    27,681.04x = 38,188.20 × 19,302.40
  4. Step 4: Simplify right side
    27,681.04x = 737,123,911.68
  5. Step 5: Solve for x
    x = 737,123,911.68/27,681.04
  6. Step 6: Final answer
    x = 26,629.20

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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.