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Finding the Fourth Proportional to 18,993.68, 26,211.16 and 10,495.77

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Solution

The fourth proportional to 18,993.68, 26,211.16 and 10,495.77 is: 14,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993.68 : 26,211.16 = 10,495.77 : x
  2. Step 2: Convert to fraction form
    18,993.68/26,211.16 = 10,495.77/x
  3. Step 3: Cross multiply
    18,993.68x = 26,211.16 × 10,495.77
  4. Step 4: Simplify right side
    18,993.68x = 275,106,306.79
  5. Step 5: Solve for x
    x = 275,106,306.79/18,993.68
  6. Step 6: Final answer
    x = 14,484.10

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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.