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Finding the Fourth Proportional to 7,902.79, 10,905.49 and 4,365.92

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Solution

The fourth proportional to 7,902.79, 10,905.49 and 4,365.92 is: 6,024.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.79 : 10,905.49 = 4,365.92 : x
  2. Step 2: Convert to fraction form
    7,902.79/10,905.49 = 4,365.92/x
  3. Step 3: Cross multiply
    7,902.79x = 10,905.49 × 4,365.92
  4. Step 4: Simplify right side
    7,902.79x = 47,612,496.90
  5. Step 5: Solve for x
    x = 47,612,496.90/7,902.79
  6. Step 6: Final answer
    x = 6,024.77

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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.