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Finding the Fourth Proportional to 19,951.96, 29,692.37 and 19,287.52

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Solution

The fourth proportional to 19,951.96, 29,692.37 and 19,287.52 is: 28,703.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.96 : 29,692.37 = 19,287.52 : x
  2. Step 2: Convert to fraction form
    19,951.96/29,692.37 = 19,287.52/x
  3. Step 3: Cross multiply
    19,951.96x = 29,692.37 × 19,287.52
  4. Step 4: Simplify right side
    19,951.96x = 572,692,180.22
  5. Step 5: Solve for x
    x = 572,692,180.22/19,951.96
  6. Step 6: Final answer
    x = 28,703.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.