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Finding the Fourth Proportional to 16,969.15, 23,417.07 and 9,415.32

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Solution

The fourth proportional to 16,969.15, 23,417.07 and 9,415.32 is: 12,992.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,969.15 : 23,417.07 = 9,415.32 : x
  2. Step 2: Convert to fraction form
    16,969.15/23,417.07 = 9,415.32/x
  3. Step 3: Cross multiply
    16,969.15x = 23,417.07 × 9,415.32
  4. Step 4: Simplify right side
    16,969.15x = 220,479,176.73
  5. Step 5: Solve for x
    x = 220,479,176.73/16,969.15
  6. Step 6: Final answer
    x = 12,992.94

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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.