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Finding the Fourth Proportional to 7,145.91, 10,700.91 and 4,333.23

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Solution

The fourth proportional to 7,145.91, 10,700.91 and 4,333.23 is: 6,488.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.91 : 10,700.91 = 4,333.23 : x
  2. Step 2: Convert to fraction form
    7,145.91/10,700.91 = 4,333.23/x
  3. Step 3: Cross multiply
    7,145.91x = 10,700.91 × 4,333.23
  4. Step 4: Simplify right side
    7,145.91x = 46,369,504.24
  5. Step 5: Solve for x
    x = 46,369,504.24/7,145.91
  6. Step 6: Final answer
    x = 6,488.96

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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.