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Finding the Fourth Proportional to 25,890.63, 38,874.83 and 14,809.83

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Solution

The fourth proportional to 25,890.63, 38,874.83 and 14,809.83 is: 22,236.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,890.63 : 38,874.83 = 14,809.83 : x
  2. Step 2: Convert to fraction form
    25,890.63/38,874.83 = 14,809.83/x
  3. Step 3: Cross multiply
    25,890.63x = 38,874.83 × 14,809.83
  4. Step 4: Simplify right side
    25,890.63x = 575,729,549.53
  5. Step 5: Solve for x
    x = 575,729,549.53/25,890.63
  6. Step 6: Final answer
    x = 22,236.98

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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.