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Finding the Fourth Proportional to 15,092.60, 20,829.66 and 8,804.96

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Solution

The fourth proportional to 15,092.60, 20,829.66 and 8,804.96 is: 12,151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,092.60 : 20,829.66 = 8,804.96 : x
  2. Step 2: Convert to fraction form
    15,092.60/20,829.66 = 8,804.96/x
  3. Step 3: Cross multiply
    15,092.60x = 20,829.66 × 8,804.96
  4. Step 4: Simplify right side
    15,092.60x = 183,404,323.11
  5. Step 5: Solve for x
    x = 183,404,323.11/15,092.60
  6. Step 6: Final answer
    x = 12,151.94

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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.