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Finding the Fourth Proportional to 17,802.96, 26,709.98 and 12,874.38

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Solution

The fourth proportional to 17,802.96, 26,709.98 and 12,874.38 is: 19,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,802.96 : 26,709.98 = 12,874.38 : x
  2. Step 2: Convert to fraction form
    17,802.96/26,709.98 = 12,874.38/x
  3. Step 3: Cross multiply
    17,802.96x = 26,709.98 × 12,874.38
  4. Step 4: Simplify right side
    17,802.96x = 343,874,432.31
  5. Step 5: Solve for x
    x = 343,874,432.31/17,802.96
  6. Step 6: Final answer
    x = 19,315.58

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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.