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Finding the Fourth Proportional to 17,898.88, 26,857.12 and 8,045.12

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Solution

The fourth proportional to 17,898.88, 26,857.12 and 8,045.12 is: 12,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,898.88 : 26,857.12 = 8,045.12 : x
  2. Step 2: Convert to fraction form
    17,898.88/26,857.12 = 8,045.12/x
  3. Step 3: Cross multiply
    17,898.88x = 26,857.12 × 8,045.12
  4. Step 4: Simplify right side
    17,898.88x = 216,068,753.25
  5. Step 5: Solve for x
    x = 216,068,753.25/17,898.88
  6. Step 6: Final answer
    x = 12,071.64

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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.