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Finding the Fourth Proportional to 14,683.95, 20,263.88 and 7,969.58

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Solution

The fourth proportional to 14,683.95, 20,263.88 and 7,969.58 is: 10,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,683.95 : 20,263.88 = 7,969.58 : x
  2. Step 2: Convert to fraction form
    14,683.95/20,263.88 = 7,969.58/x
  3. Step 3: Cross multiply
    14,683.95x = 20,263.88 × 7,969.58
  4. Step 4: Simplify right side
    14,683.95x = 161,494,619.53
  5. Step 5: Solve for x
    x = 161,494,619.53/14,683.95
  6. Step 6: Final answer
    x = 10,998.03

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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.