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Finding the Fourth Proportional to 15,048.54, 20,764.53 and 8,675.39

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Solution

The fourth proportional to 15,048.54, 20,764.53 and 8,675.39 is: 11,970.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,048.54 : 20,764.53 = 8,675.39 : x
  2. Step 2: Convert to fraction form
    15,048.54/20,764.53 = 8,675.39/x
  3. Step 3: Cross multiply
    15,048.54x = 20,764.53 × 8,675.39
  4. Step 4: Simplify right side
    15,048.54x = 180,140,292.09
  5. Step 5: Solve for x
    x = 180,140,292.09/15,048.54
  6. Step 6: Final answer
    x = 11,970.62

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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.