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Finding the Fourth Proportional to 28,687, 39,584.52 and 16,741.66

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Solution

The fourth proportional to 28,687, 39,584.52 and 16,741.66 is: 23,101.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687 : 39,584.52 = 16,741.66 : x
  2. Step 2: Convert to fraction form
    28,687/39,584.52 = 16,741.66/x
  3. Step 3: Cross multiply
    28,687x = 39,584.52 × 16,741.66
  4. Step 4: Simplify right side
    28,687x = 662,710,575.10
  5. Step 5: Solve for x
    x = 662,710,575.10/28,687
  6. Step 6: Final answer
    x = 23,101.42

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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.