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Finding the Fourth Proportional to 28,165.88, 38,866.29 and 16,833.14

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Solution

The fourth proportional to 28,165.88, 38,866.29 and 16,833.14 is: 23,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.88 : 38,866.29 = 16,833.14 : x
  2. Step 2: Convert to fraction form
    28,165.88/38,866.29 = 16,833.14/x
  3. Step 3: Cross multiply
    28,165.88x = 38,866.29 × 16,833.14
  4. Step 4: Simplify right side
    28,165.88x = 654,241,700.85
  5. Step 5: Solve for x
    x = 654,241,700.85/28,165.88
  6. Step 6: Final answer
    x = 23,228.16

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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.