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Finding the Fourth Proportional to 28,060.56, 38,716.56 and 16,127.28

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Solution

The fourth proportional to 28,060.56, 38,716.56 and 16,127.28 is: 22,251.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.56 : 38,716.56 = 16,127.28 : x
  2. Step 2: Convert to fraction form
    28,060.56/38,716.56 = 16,127.28/x
  3. Step 3: Cross multiply
    28,060.56x = 38,716.56 × 16,127.28
  4. Step 4: Simplify right side
    28,060.56x = 624,392,803.76
  5. Step 5: Solve for x
    x = 624,392,803.76/28,060.56
  6. Step 6: Final answer
    x = 22,251.62

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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.