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Finding the Fourth Proportional to 7,564.60, 10,440.86 and 4,422.60

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Solution

The fourth proportional to 7,564.60, 10,440.86 and 4,422.60 is: 6,104.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,564.60 : 10,440.86 = 4,422.60 : x
  2. Step 2: Convert to fraction form
    7,564.60/10,440.86 = 4,422.60/x
  3. Step 3: Cross multiply
    7,564.60x = 10,440.86 × 4,422.60
  4. Step 4: Simplify right side
    7,564.60x = 46,175,747.44
  5. Step 5: Solve for x
    x = 46,175,747.44/7,564.60
  6. Step 6: Final answer
    x = 6,104.19

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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.