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Finding the Fourth Proportional to 21,049.76, 31,554.16 and 17,593.76

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Solution

The fourth proportional to 21,049.76, 31,554.16 and 17,593.76 is: 26,373.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.76 : 31,554.16 = 17,593.76 : x
  2. Step 2: Convert to fraction form
    21,049.76/31,554.16 = 17,593.76/x
  3. Step 3: Cross multiply
    21,049.76x = 31,554.16 × 17,593.76
  4. Step 4: Simplify right side
    21,049.76x = 555,156,318.04
  5. Step 5: Solve for x
    x = 555,156,318.04/21,049.76
  6. Step 6: Final answer
    x = 26,373.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.