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Finding the Fourth Proportional to 7,162.03, 9,884.10 and 4,018.42

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Solution

The fourth proportional to 7,162.03, 9,884.10 and 4,018.42 is: 5,545.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.03 : 9,884.10 = 4,018.42 : x
  2. Step 2: Convert to fraction form
    7,162.03/9,884.10 = 4,018.42/x
  3. Step 3: Cross multiply
    7,162.03x = 9,884.10 × 4,018.42
  4. Step 4: Simplify right side
    7,162.03x = 39,718,465.12
  5. Step 5: Solve for x
    x = 39,718,465.12/7,162.03
  6. Step 6: Final answer
    x = 5,545.70

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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.