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Finding the Fourth Proportional to 31,908.84, 47,883.74 and 15,483.88

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Solution

The fourth proportional to 31,908.84, 47,883.74 and 15,483.88 is: 23,235.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,908.84 : 47,883.74 = 15,483.88 : x
  2. Step 2: Convert to fraction form
    31,908.84/47,883.74 = 15,483.88/x
  3. Step 3: Cross multiply
    31,908.84x = 47,883.74 × 15,483.88
  4. Step 4: Simplify right side
    31,908.84x = 741,426,084.11
  5. Step 5: Solve for x
    x = 741,426,084.11/31,908.84
  6. Step 6: Final answer
    x = 23,235.76

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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.