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Finding the Fourth Proportional to 8,805.60, 13,218.12 and 6,968.52

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Solution

The fourth proportional to 8,805.60, 13,218.12 and 6,968.52 is: 10,460.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.60 : 13,218.12 = 6,968.52 : x
  2. Step 2: Convert to fraction form
    8,805.60/13,218.12 = 6,968.52/x
  3. Step 3: Cross multiply
    8,805.60x = 13,218.12 × 6,968.52
  4. Step 4: Simplify right side
    8,805.60x = 92,110,733.58
  5. Step 5: Solve for x
    x = 92,110,733.58/8,805.60
  6. Step 6: Final answer
    x = 10,460.47

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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.