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Finding the Fourth Proportional to 7,759.68, 10,709.06 and 4,402.64

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Solution

The fourth proportional to 7,759.68, 10,709.06 and 4,402.64 is: 6,076.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.68 : 10,709.06 = 4,402.64 : x
  2. Step 2: Convert to fraction form
    7,759.68/10,709.06 = 4,402.64/x
  3. Step 3: Cross multiply
    7,759.68x = 10,709.06 × 4,402.64
  4. Step 4: Simplify right side
    7,759.68x = 47,148,060.36
  5. Step 5: Solve for x
    x = 47,148,060.36/7,759.68
  6. Step 6: Final answer
    x = 6,076.03

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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.