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Finding the Fourth Proportional to 18,226.31, 25,152.31 and 9,842.81

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Solution

The fourth proportional to 18,226.31, 25,152.31 and 9,842.81 is: 13,583.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,226.31 : 25,152.31 = 9,842.81 : x
  2. Step 2: Convert to fraction form
    18,226.31/25,152.31 = 9,842.81/x
  3. Step 3: Cross multiply
    18,226.31x = 25,152.31 × 9,842.81
  4. Step 4: Simplify right side
    18,226.31x = 247,569,495.88
  5. Step 5: Solve for x
    x = 247,569,495.88/18,226.31
  6. Step 6: Final answer
    x = 13,583.08

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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.