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Finding the Fourth Proportional to 16,862.68, 23,270.70 and 9,410.68

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Solution

The fourth proportional to 16,862.68, 23,270.70 and 9,410.68 is: 12,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,862.68 : 23,270.70 = 9,410.68 : x
  2. Step 2: Convert to fraction form
    16,862.68/23,270.70 = 9,410.68/x
  3. Step 3: Cross multiply
    16,862.68x = 23,270.70 × 9,410.68
  4. Step 4: Simplify right side
    16,862.68x = 218,993,111.08
  5. Step 5: Solve for x
    x = 218,993,111.08/16,862.68
  6. Step 6: Final answer
    x = 12,986.85

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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.