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Finding the Fourth Proportional to 7,482.08, 10,325.28 and 4,170.08

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Solution

The fourth proportional to 7,482.08, 10,325.28 and 4,170.08 is: 5,754.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.08 : 10,325.28 = 4,170.08 : x
  2. Step 2: Convert to fraction form
    7,482.08/10,325.28 = 4,170.08/x
  3. Step 3: Cross multiply
    7,482.08x = 10,325.28 × 4,170.08
  4. Step 4: Simplify right side
    7,482.08x = 43,057,243.62
  5. Step 5: Solve for x
    x = 43,057,243.62/7,482.08
  6. Step 6: Final answer
    x = 5,754.72

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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.