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Finding the Fourth Proportional to 14,776.31, 20,388.52 and 8,808.54

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Solution

The fourth proportional to 14,776.31, 20,388.52 and 8,808.54 is: 12,154.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,776.31 : 20,388.52 = 8,808.54 : x
  2. Step 2: Convert to fraction form
    14,776.31/20,388.52 = 8,808.54/x
  3. Step 3: Cross multiply
    14,776.31x = 20,388.52 × 8,808.54
  4. Step 4: Simplify right side
    14,776.31x = 179,593,028.51
  5. Step 5: Solve for x
    x = 179,593,028.51/14,776.31
  6. Step 6: Final answer
    x = 12,154.12

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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.