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Finding the Fourth Proportional to 14,811.06, 20,437.74 and 8,841.90

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Solution

The fourth proportional to 14,811.06, 20,437.74 and 8,841.90 is: 12,200.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,811.06 : 20,437.74 = 8,841.90 : x
  2. Step 2: Convert to fraction form
    14,811.06/20,437.74 = 8,841.90/x
  3. Step 3: Cross multiply
    14,811.06x = 20,437.74 × 8,841.90
  4. Step 4: Simplify right side
    14,811.06x = 180,708,453.31
  5. Step 5: Solve for x
    x = 180,708,453.31/14,811.06
  6. Step 6: Final answer
    x = 12,200.91

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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.