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Finding the Fourth Proportional to 14,104.71, 19,464.48 and 7,731.30

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Solution

The fourth proportional to 14,104.71, 19,464.48 and 7,731.30 is: 10,669.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,104.71 : 19,464.48 = 7,731.30 : x
  2. Step 2: Convert to fraction form
    14,104.71/19,464.48 = 7,731.30/x
  3. Step 3: Cross multiply
    14,104.71x = 19,464.48 × 7,731.30
  4. Step 4: Simplify right side
    14,104.71x = 150,485,734.22
  5. Step 5: Solve for x
    x = 150,485,734.22/14,104.71
  6. Step 6: Final answer
    x = 10,669.18

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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.