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Finding the Fourth Proportional to 27,966.63, 38,594.76 and 15,220.63

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Solution

The fourth proportional to 27,966.63, 38,594.76 and 15,220.63 is: 21,004.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,966.63 : 38,594.76 = 15,220.63 : x
  2. Step 2: Convert to fraction form
    27,966.63/38,594.76 = 15,220.63/x
  3. Step 3: Cross multiply
    27,966.63x = 38,594.76 × 15,220.63
  4. Step 4: Simplify right side
    27,966.63x = 587,436,561.90
  5. Step 5: Solve for x
    x = 587,436,561.90/27,966.63
  6. Step 6: Final answer
    x = 21,004.91

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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.