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Finding the Fourth Proportional to 16,712.62, 25,066.11 and 7,828.90

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Solution

The fourth proportional to 16,712.62, 25,066.11 and 7,828.90 is: 11,742.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,712.62 : 25,066.11 = 7,828.90 : x
  2. Step 2: Convert to fraction form
    16,712.62/25,066.11 = 7,828.90/x
  3. Step 3: Cross multiply
    16,712.62x = 25,066.11 × 7,828.90
  4. Step 4: Simplify right side
    16,712.62x = 196,240,068.58
  5. Step 5: Solve for x
    x = 196,240,068.58/16,712.62
  6. Step 6: Final answer
    x = 11,742.03

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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.