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Finding the Fourth Proportional to 7,659.90, 10,571.04 and 4,302.54

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Solution

The fourth proportional to 7,659.90, 10,571.04 and 4,302.54 is: 5,937.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659.90 : 10,571.04 = 4,302.54 : x
  2. Step 2: Convert to fraction form
    7,659.90/10,571.04 = 4,302.54/x
  3. Step 3: Cross multiply
    7,659.90x = 10,571.04 × 4,302.54
  4. Step 4: Simplify right side
    7,659.90x = 45,482,322.44
  5. Step 5: Solve for x
    x = 45,482,322.44/7,659.90
  6. Step 6: Final answer
    x = 5,937.72

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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.