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Finding the Fourth Proportional to 11,808.88, 17,737.92 and 9,963.58

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Solution

The fourth proportional to 11,808.88, 17,737.92 and 9,963.58 is: 14,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808.88 : 17,737.92 = 9,963.58 : x
  2. Step 2: Convert to fraction form
    11,808.88/17,737.92 = 9,963.58/x
  3. Step 3: Cross multiply
    11,808.88x = 17,737.92 × 9,963.58
  4. Step 4: Simplify right side
    11,808.88x = 176,733,184.95
  5. Step 5: Solve for x
    x = 176,733,184.95/11,808.88
  6. Step 6: Final answer
    x = 14,966.13

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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.