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Finding the Fourth Proportional to 8,559.90, 11,807.94 and 6,968.25

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Solution

The fourth proportional to 8,559.90, 11,807.94 and 6,968.25 is: 9,612.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.90 : 11,807.94 = 6,968.25 : x
  2. Step 2: Convert to fraction form
    8,559.90/11,807.94 = 6,968.25/x
  3. Step 3: Cross multiply
    8,559.90x = 11,807.94 × 6,968.25
  4. Step 4: Simplify right side
    8,559.90x = 82,280,677.91
  5. Step 5: Solve for x
    x = 82,280,677.91/8,559.90
  6. Step 6: Final answer
    x = 9,612.34

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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.