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Finding the Fourth Proportional to 19,259.48, 28,835.82 and 9,879.32

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Solution

The fourth proportional to 19,259.48, 28,835.82 and 9,879.32 is: 14,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,259.48 : 28,835.82 = 9,879.32 : x
  2. Step 2: Convert to fraction form
    19,259.48/28,835.82 = 9,879.32/x
  3. Step 3: Cross multiply
    19,259.48x = 28,835.82 × 9,879.32
  4. Step 4: Simplify right side
    19,259.48x = 284,878,293.24
  5. Step 5: Solve for x
    x = 284,878,293.24/19,259.48
  6. Step 6: Final answer
    x = 14,791.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.