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Finding the Fourth Proportional to 7,417.92, 10,213.92 and 6,726.72

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Solution

The fourth proportional to 7,417.92, 10,213.92 and 6,726.72 is: 9,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,417.92 : 10,213.92 = 6,726.72 : x
  2. Step 2: Convert to fraction form
    7,417.92/10,213.92 = 6,726.72/x
  3. Step 3: Cross multiply
    7,417.92x = 10,213.92 × 6,726.72
  4. Step 4: Simplify right side
    7,417.92x = 68,706,179.94
  5. Step 5: Solve for x
    x = 68,706,179.94/7,417.92
  6. Step 6: Final answer
    x = 9,262.19

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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.