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Finding the Fourth Proportional to 28,806.31, 39,751.05 and 16,059.07

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Solution

The fourth proportional to 28,806.31, 39,751.05 and 16,059.07 is: 22,160.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.31 : 39,751.05 = 16,059.07 : x
  2. Step 2: Convert to fraction form
    28,806.31/39,751.05 = 16,059.07/x
  3. Step 3: Cross multiply
    28,806.31x = 39,751.05 × 16,059.07
  4. Step 4: Simplify right side
    28,806.31x = 638,364,894.52
  5. Step 5: Solve for x
    x = 638,364,894.52/28,806.31
  6. Step 6: Final answer
    x = 22,160.59

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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.