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Finding the Fourth Proportional to 16,999.81, 23,459.23 and 9,343.11

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Solution

The fourth proportional to 16,999.81, 23,459.23 and 9,343.11 is: 12,893.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999.81 : 23,459.23 = 9,343.11 : x
  2. Step 2: Convert to fraction form
    16,999.81/23,459.23 = 9,343.11/x
  3. Step 3: Cross multiply
    16,999.81x = 23,459.23 × 9,343.11
  4. Step 4: Simplify right side
    16,999.81x = 219,182,166.41
  5. Step 5: Solve for x
    x = 219,182,166.41/16,999.81
  6. Step 6: Final answer
    x = 12,893.21

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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.