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Finding the Fourth Proportional to 30,846.79, 42,568.58 and 16,699.64

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Solution

The fourth proportional to 30,846.79, 42,568.58 and 16,699.64 is: 23,045.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,846.79 : 42,568.58 = 16,699.64 : x
  2. Step 2: Convert to fraction form
    30,846.79/42,568.58 = 16,699.64/x
  3. Step 3: Cross multiply
    30,846.79x = 42,568.58 × 16,699.64
  4. Step 4: Simplify right side
    30,846.79x = 710,879,790.22
  5. Step 5: Solve for x
    x = 710,879,790.22/30,846.79
  6. Step 6: Final answer
    x = 23,045.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.