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Finding the Fourth Proportional to 16,776.90, 23,157 and 10,405.44

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Solution

The fourth proportional to 16,776.90, 23,157 and 10,405.44 is: 14,362.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,776.90 : 23,157 = 10,405.44 : x
  2. Step 2: Convert to fraction form
    16,776.90/23,157 = 10,405.44/x
  3. Step 3: Cross multiply
    16,776.90x = 23,157 × 10,405.44
  4. Step 4: Simplify right side
    16,776.90x = 240,958,774.08
  5. Step 5: Solve for x
    x = 240,958,774.08/16,776.90
  6. Step 6: Final answer
    x = 14,362.53

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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.