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Finding the Fourth Proportional to 12,295.33, 16,968.98 and 6,990.93

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Solution

The fourth proportional to 12,295.33, 16,968.98 and 6,990.93 is: 9,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.33 : 16,968.98 = 6,990.93 : x
  2. Step 2: Convert to fraction form
    12,295.33/16,968.98 = 6,990.93/x
  3. Step 3: Cross multiply
    12,295.33x = 16,968.98 × 6,990.93
  4. Step 4: Simplify right side
    12,295.33x = 118,628,968.83
  5. Step 5: Solve for x
    x = 118,628,968.83/12,295.33
  6. Step 6: Final answer
    x = 9,648.30

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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.