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Finding the Fourth Proportional to 18,269.62, 25,216.95 and 10,316.50

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Solution

The fourth proportional to 18,269.62, 25,216.95 and 10,316.50 is: 14,239.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.62 : 25,216.95 = 10,316.50 : x
  2. Step 2: Convert to fraction form
    18,269.62/25,216.95 = 10,316.50/x
  3. Step 3: Cross multiply
    18,269.62x = 25,216.95 × 10,316.50
  4. Step 4: Simplify right side
    18,269.62x = 260,150,664.68
  5. Step 5: Solve for x
    x = 260,150,664.68/18,269.62
  6. Step 6: Final answer
    x = 14,239.52

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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.