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Finding the Fourth Proportional to 18,591.69, 25,656.60 and 11,041.77

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Solution

The fourth proportional to 18,591.69, 25,656.60 and 11,041.77 is: 15,237.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.69 : 25,656.60 = 11,041.77 : x
  2. Step 2: Convert to fraction form
    18,591.69/25,656.60 = 11,041.77/x
  3. Step 3: Cross multiply
    18,591.69x = 25,656.60 × 11,041.77
  4. Step 4: Simplify right side
    18,591.69x = 283,294,276.18
  5. Step 5: Solve for x
    x = 283,294,276.18/18,591.69
  6. Step 6: Final answer
    x = 15,237.68

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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.