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Finding the Fourth Proportional to 7,150.95, 9,868.29 and 4,007.14

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Solution

The fourth proportional to 7,150.95, 9,868.29 and 4,007.14 is: 5,529.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.95 : 9,868.29 = 4,007.14 : x
  2. Step 2: Convert to fraction form
    7,150.95/9,868.29 = 4,007.14/x
  3. Step 3: Cross multiply
    7,150.95x = 9,868.29 × 4,007.14
  4. Step 4: Simplify right side
    7,150.95x = 39,543,570.25
  5. Step 5: Solve for x
    x = 39,543,570.25/7,150.95
  6. Step 6: Final answer
    x = 5,529.83

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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.