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Finding the Fourth Proportional to 18,319.08, 25,280.46 and 10,867.08

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Solution

The fourth proportional to 18,319.08, 25,280.46 and 10,867.08 is: 14,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.08 : 25,280.46 = 10,867.08 : x
  2. Step 2: Convert to fraction form
    18,319.08/25,280.46 = 10,867.08/x
  3. Step 3: Cross multiply
    18,319.08x = 25,280.46 × 10,867.08
  4. Step 4: Simplify right side
    18,319.08x = 274,724,781.26
  5. Step 5: Solve for x
    x = 274,724,781.26/18,319.08
  6. Step 6: Final answer
    x = 14,996.65

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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.