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Finding the Fourth Proportional to 19,123.76, 26,391.51 and 10,626.51

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Solution

The fourth proportional to 19,123.76, 26,391.51 and 10,626.51 is: 14,664.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,123.76 : 26,391.51 = 10,626.51 : x
  2. Step 2: Convert to fraction form
    19,123.76/26,391.51 = 10,626.51/x
  3. Step 3: Cross multiply
    19,123.76x = 26,391.51 × 10,626.51
  4. Step 4: Simplify right side
    19,123.76x = 280,449,545.96
  5. Step 5: Solve for x
    x = 280,449,545.96/19,123.76
  6. Step 6: Final answer
    x = 14,664.98

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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.