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Finding the Fourth Proportional to 17,806.75, 24,559.95 and 14,989.18

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Solution

The fourth proportional to 17,806.75, 24,559.95 and 14,989.18 is: 20,673.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,806.75 : 24,559.95 = 14,989.18 : x
  2. Step 2: Convert to fraction form
    17,806.75/24,559.95 = 14,989.18/x
  3. Step 3: Cross multiply
    17,806.75x = 24,559.95 × 14,989.18
  4. Step 4: Simplify right side
    17,806.75x = 368,133,511.34
  5. Step 5: Solve for x
    x = 368,133,511.34/17,806.75
  6. Step 6: Final answer
    x = 20,673.82

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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.