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Finding the Fourth Proportional to 27,886.92, 38,484.09 and 15,950.76

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Solution

The fourth proportional to 27,886.92, 38,484.09 and 15,950.76 is: 22,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886.92 : 38,484.09 = 15,950.76 : x
  2. Step 2: Convert to fraction form
    27,886.92/38,484.09 = 15,950.76/x
  3. Step 3: Cross multiply
    27,886.92x = 38,484.09 × 15,950.76
  4. Step 4: Simplify right side
    27,886.92x = 613,850,483.41
  5. Step 5: Solve for x
    x = 613,850,483.41/27,886.92
  6. Step 6: Final answer
    x = 22,012.13

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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.