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Finding the Fourth Proportional to 12,259.19, 16,917.19 and 6,953.90

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Solution

The fourth proportional to 12,259.19, 16,917.19 and 6,953.90 is: 9,596.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259.19 : 16,917.19 = 6,953.90 : x
  2. Step 2: Convert to fraction form
    12,259.19/16,917.19 = 6,953.90/x
  3. Step 3: Cross multiply
    12,259.19x = 16,917.19 × 6,953.90
  4. Step 4: Simplify right side
    12,259.19x = 117,640,345.57
  5. Step 5: Solve for x
    x = 117,640,345.57/12,259.19
  6. Step 6: Final answer
    x = 9,596.09

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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.