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Finding the Fourth Proportional to 15,073.91, 20,802.50 and 9,104.39

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Solution

The fourth proportional to 15,073.91, 20,802.50 and 9,104.39 is: 12,564.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,073.91 : 20,802.50 = 9,104.39 : x
  2. Step 2: Convert to fraction form
    15,073.91/20,802.50 = 9,104.39/x
  3. Step 3: Cross multiply
    15,073.91x = 20,802.50 × 9,104.39
  4. Step 4: Simplify right side
    15,073.91x = 189,393,923.44
  5. Step 5: Solve for x
    x = 189,393,923.44/15,073.91
  6. Step 6: Final answer
    x = 12,564.36

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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.