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Finding the Fourth Proportional to 18,424.08, 25,424.64 and 10,468.08

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Solution

The fourth proportional to 18,424.08, 25,424.64 and 10,468.08 is: 14,445.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.08 : 25,424.64 = 10,468.08 : x
  2. Step 2: Convert to fraction form
    18,424.08/25,424.64 = 10,468.08/x
  3. Step 3: Cross multiply
    18,424.08x = 25,424.64 × 10,468.08
  4. Step 4: Simplify right side
    18,424.08x = 266,147,165.49
  5. Step 5: Solve for x
    x = 266,147,165.49/18,424.08
  6. Step 6: Final answer
    x = 14,445.61

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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.