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Finding the Fourth Proportional to 7,615.96, 10,503.48 and 4,962.40

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Solution

The fourth proportional to 7,615.96, 10,503.48 and 4,962.40 is: 6,843.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.96 : 10,503.48 = 4,962.40 : x
  2. Step 2: Convert to fraction form
    7,615.96/10,503.48 = 4,962.40/x
  3. Step 3: Cross multiply
    7,615.96x = 10,503.48 × 4,962.40
  4. Step 4: Simplify right side
    7,615.96x = 52,122,469.15
  5. Step 5: Solve for x
    x = 52,122,469.15/7,615.96
  6. Step 6: Final answer
    x = 6,843.85

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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.