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Finding the Fourth Proportional to 8,968.60, 13,459.86 and 6,214.58

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Solution

The fourth proportional to 8,968.60, 13,459.86 and 6,214.58 is: 9,326.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.60 : 13,459.86 = 6,214.58 : x
  2. Step 2: Convert to fraction form
    8,968.60/13,459.86 = 6,214.58/x
  3. Step 3: Cross multiply
    8,968.60x = 13,459.86 × 6,214.58
  4. Step 4: Simplify right side
    8,968.60x = 83,647,376.76
  5. Step 5: Solve for x
    x = 83,647,376.76/8,968.60
  6. Step 6: Final answer
    x = 9,326.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.