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Finding the Fourth Proportional to 34,815.76, 48,040.68 and 19,908.88

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Solution

The fourth proportional to 34,815.76, 48,040.68 and 19,908.88 is: 27,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,815.76 : 48,040.68 = 19,908.88 : x
  2. Step 2: Convert to fraction form
    34,815.76/48,040.68 = 19,908.88/x
  3. Step 3: Cross multiply
    34,815.76x = 48,040.68 × 19,908.88
  4. Step 4: Simplify right side
    34,815.76x = 956,436,133.24
  5. Step 5: Solve for x
    x = 956,436,133.24/34,815.76
  6. Step 6: Final answer
    x = 27,471.36

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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.