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Finding the Fourth Proportional to 27,995.35, 38,633 and 15,248.68

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Solution

The fourth proportional to 27,995.35, 38,633 and 15,248.68 is: 21,042.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,995.35 : 38,633 = 15,248.68 : x
  2. Step 2: Convert to fraction form
    27,995.35/38,633 = 15,248.68/x
  3. Step 3: Cross multiply
    27,995.35x = 38,633 × 15,248.68
  4. Step 4: Simplify right side
    27,995.35x = 589,102,254.44
  5. Step 5: Solve for x
    x = 589,102,254.44/27,995.35
  6. Step 6: Final answer
    x = 21,042.86

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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.