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Finding the Fourth Proportional to 17,838.61, 26,763.31 and 6,748.69

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Solution

The fourth proportional to 17,838.61, 26,763.31 and 6,748.69 is: 10,125.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,838.61 : 26,763.31 = 6,748.69 : x
  2. Step 2: Convert to fraction form
    17,838.61/26,763.31 = 6,748.69/x
  3. Step 3: Cross multiply
    17,838.61x = 26,763.31 × 6,748.69
  4. Step 4: Simplify right side
    17,838.61x = 180,617,282.56
  5. Step 5: Solve for x
    x = 180,617,282.56/17,838.61
  6. Step 6: Final answer
    x = 10,125.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.