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Finding the Fourth Proportional to 12,627.60, 17,426.20 and 6,962.55

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Solution

The fourth proportional to 12,627.60, 17,426.20 and 6,962.55 is: 9,608.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627.60 : 17,426.20 = 6,962.55 : x
  2. Step 2: Convert to fraction form
    12,627.60/17,426.20 = 6,962.55/x
  3. Step 3: Cross multiply
    12,627.60x = 17,426.20 × 6,962.55
  4. Step 4: Simplify right side
    12,627.60x = 121,330,788.81
  5. Step 5: Solve for x
    x = 121,330,788.81/12,627.60
  6. Step 6: Final answer
    x = 9,608.38

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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.