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Finding the Fourth Proportional to 12,859.29, 17,744.99 and 7,193.06

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Solution

The fourth proportional to 12,859.29, 17,744.99 and 7,193.06 is: 9,925.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859.29 : 17,744.99 = 7,193.06 : x
  2. Step 2: Convert to fraction form
    12,859.29/17,744.99 = 7,193.06/x
  3. Step 3: Cross multiply
    12,859.29x = 17,744.99 × 7,193.06
  4. Step 4: Simplify right side
    12,859.29x = 127,640,653.08
  5. Step 5: Solve for x
    x = 127,640,653.08/12,859.29
  6. Step 6: Final answer
    x = 9,925.95

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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.