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Finding the Fourth Proportional to 7,908.79, 10,927.25 and 6,242.92

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Solution

The fourth proportional to 7,908.79, 10,927.25 and 6,242.92 is: 8,625.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.79 : 10,927.25 = 6,242.92 : x
  2. Step 2: Convert to fraction form
    7,908.79/10,927.25 = 6,242.92/x
  3. Step 3: Cross multiply
    7,908.79x = 10,927.25 × 6,242.92
  4. Step 4: Simplify right side
    7,908.79x = 68,218,009.03
  5. Step 5: Solve for x
    x = 68,218,009.03/7,908.79
  6. Step 6: Final answer
    x = 8,625.59

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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.