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Finding the Fourth Proportional to 18,874.30, 26,044.92 and 10,916.98

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Solution

The fourth proportional to 18,874.30, 26,044.92 and 10,916.98 is: 15,064.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.30 : 26,044.92 = 10,916.98 : x
  2. Step 2: Convert to fraction form
    18,874.30/26,044.92 = 10,916.98/x
  3. Step 3: Cross multiply
    18,874.30x = 26,044.92 × 10,916.98
  4. Step 4: Simplify right side
    18,874.30x = 284,331,870.74
  5. Step 5: Solve for x
    x = 284,331,870.74/18,874.30
  6. Step 6: Final answer
    x = 15,064.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.