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Finding the Fourth Proportional to 14,424.15, 19,905.22 and 8,373.90

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Solution

The fourth proportional to 14,424.15, 19,905.22 and 8,373.90 is: 11,555.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,424.15 : 19,905.22 = 8,373.90 : x
  2. Step 2: Convert to fraction form
    14,424.15/19,905.22 = 8,373.90/x
  3. Step 3: Cross multiply
    14,424.15x = 19,905.22 × 8,373.90
  4. Step 4: Simplify right side
    14,424.15x = 166,684,321.76
  5. Step 5: Solve for x
    x = 166,684,321.76/14,424.15
  6. Step 6: Final answer
    x = 11,555.92

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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.