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Finding the Fourth Proportional to 13,225.68, 18,252.44 and 7,560.65

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Solution

The fourth proportional to 13,225.68, 18,252.44 and 7,560.65 is: 10,434.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.68 : 18,252.44 = 7,560.65 : x
  2. Step 2: Convert to fraction form
    13,225.68/18,252.44 = 7,560.65/x
  3. Step 3: Cross multiply
    13,225.68x = 18,252.44 × 7,560.65
  4. Step 4: Simplify right side
    13,225.68x = 138,000,181.42
  5. Step 5: Solve for x
    x = 138,000,181.42/13,225.68
  6. Step 6: Final answer
    x = 10,434.26

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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.