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Finding the Fourth Proportional to 18,475.68, 25,493.52 and 10,518.08

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Solution

The fourth proportional to 18,475.68, 25,493.52 and 10,518.08 is: 14,513.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475.68 : 25,493.52 = 10,518.08 : x
  2. Step 2: Convert to fraction form
    18,475.68/25,493.52 = 10,518.08/x
  3. Step 3: Cross multiply
    18,475.68x = 25,493.52 × 10,518.08
  4. Step 4: Simplify right side
    18,475.68x = 268,142,882.84
  5. Step 5: Solve for x
    x = 268,142,882.84/18,475.68
  6. Step 6: Final answer
    x = 14,513.29

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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.