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Finding the Fourth Proportional to 12,953.25, 17,876.30 and 7,364.25

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Solution

The fourth proportional to 12,953.25, 17,876.30 and 7,364.25 is: 10,163.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.25 : 17,876.30 = 7,364.25 : x
  2. Step 2: Convert to fraction form
    12,953.25/17,876.30 = 7,364.25/x
  3. Step 3: Cross multiply
    12,953.25x = 17,876.30 × 7,364.25
  4. Step 4: Simplify right side
    12,953.25x = 131,645,505.45
  5. Step 5: Solve for x
    x = 131,645,505.45/12,953.25
  6. Step 6: Final answer
    x = 10,163.13

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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.