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Finding the Fourth Proportional to 28,804.59, 39,751.56 and 16,057.77

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Solution

The fourth proportional to 28,804.59, 39,751.56 and 16,057.77 is: 22,160.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,804.59 : 39,751.56 = 16,057.77 : x
  2. Step 2: Convert to fraction form
    28,804.59/39,751.56 = 16,057.77/x
  3. Step 3: Cross multiply
    28,804.59x = 39,751.56 × 16,057.77
  4. Step 4: Simplify right side
    28,804.59x = 638,321,407.62
  5. Step 5: Solve for x
    x = 638,321,407.62/28,804.59
  6. Step 6: Final answer
    x = 22,160.41

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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.