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Finding the Fourth Proportional to 17,838.53, 26,758.05 and 8,479.50

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Solution

The fourth proportional to 17,838.53, 26,758.05 and 8,479.50 is: 12,719.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,838.53 : 26,758.05 = 8,479.50 : x
  2. Step 2: Convert to fraction form
    17,838.53/26,758.05 = 8,479.50/x
  3. Step 3: Cross multiply
    17,838.53x = 26,758.05 × 8,479.50
  4. Step 4: Simplify right side
    17,838.53x = 226,894,842.58
  5. Step 5: Solve for x
    x = 226,894,842.58/17,838.53
  6. Step 6: Final answer
    x = 12,719.37

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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.