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Finding the Fourth Proportional to 7,909.04, 10,914.42 and 4,372.22

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Solution

The fourth proportional to 7,909.04, 10,914.42 and 4,372.22 is: 6,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.04 : 10,914.42 = 4,372.22 : x
  2. Step 2: Convert to fraction form
    7,909.04/10,914.42 = 4,372.22/x
  3. Step 3: Cross multiply
    7,909.04x = 10,914.42 × 4,372.22
  4. Step 4: Simplify right side
    7,909.04x = 47,720,272.70
  5. Step 5: Solve for x
    x = 47,720,272.70/7,909.04
  6. Step 6: Final answer
    x = 6,033.64

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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.