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Finding the Fourth Proportional to 7,107.16, 10,642.08 and 5,015.88

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Solution

The fourth proportional to 7,107.16, 10,642.08 and 5,015.88 is: 7,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.16 : 10,642.08 = 5,015.88 : x
  2. Step 2: Convert to fraction form
    7,107.16/10,642.08 = 5,015.88/x
  3. Step 3: Cross multiply
    7,107.16x = 10,642.08 × 5,015.88
  4. Step 4: Simplify right side
    7,107.16x = 53,379,396.23
  5. Step 5: Solve for x
    x = 53,379,396.23/7,107.16
  6. Step 6: Final answer
    x = 7,510.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.