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Finding the Fourth Proportional to 16,851.84, 25,258.92 and 6,311.71

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Solution

The fourth proportional to 16,851.84, 25,258.92 and 6,311.71 is: 9,460.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,851.84 : 25,258.92 = 6,311.71 : x
  2. Step 2: Convert to fraction form
    16,851.84/25,258.92 = 6,311.71/x
  3. Step 3: Cross multiply
    16,851.84x = 25,258.92 × 6,311.71
  4. Step 4: Simplify right side
    16,851.84x = 159,426,977.95
  5. Step 5: Solve for x
    x = 159,426,977.95/16,851.84
  6. Step 6: Final answer
    x = 9,460.51

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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.