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Finding the Fourth Proportional to 16,862.98, 23,270.98 and 9,309.38

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Solution

The fourth proportional to 16,862.98, 23,270.98 and 9,309.38 is: 12,846.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,862.98 : 23,270.98 = 9,309.38 : x
  2. Step 2: Convert to fraction form
    16,862.98/23,270.98 = 9,309.38/x
  3. Step 3: Cross multiply
    16,862.98x = 23,270.98 × 9,309.38
  4. Step 4: Simplify right side
    16,862.98x = 216,638,395.79
  5. Step 5: Solve for x
    x = 216,638,395.79/16,862.98
  6. Step 6: Final answer
    x = 12,846.98

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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.